FACTOID # 117: In Germany and Italy, every second person owns a car.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
WHAT'S NEW
RELATED ARTICLES
People who viewed "Php" also viewed:
RECENT ARTICLES
More Recent Articles »
 

FACTS & STATISTICS    Simple view

  1. Select countries to view: (hold down Control key and click to select several)

     

     

    Compare:

     

     
  1. Select fact or statistic: (* = graphable)

     

     

     

  2. (OPTIONAL) Compare to statistic: (both need to be graphable)

     

     

     

  3. View result as:

     

       
(OR) SEARCH ALL encyclopedia, stats & forums:   

For other uses, see PHP (disambiguation).
PHP
Paradigm imperative, object-oriented
Appeared in 1995
Designed by Rasmus Lerdorf
Developer The PHP Group
Latest release 5.2.6/ May 1, 2008 (2008-05-01); 64 days ago
Latest unstable release 5.3.0-dev and 6.0-dev[1]
Typing discipline Dynamic, weak
Major implementations Roadsend PHP, Phalanger, Quercus, Project Zero
Influenced by C, Perl, Java, C++, C#, Python
Influenced Php4delphi
OS Cross-platform
License PHP License
Website http://php.net/

PHP (a recursive acronym for PHP: Hypertext Preprocessor)[2] is a computer scripting language, originally designed for producing dynamic web pages. It is for server-side scripting, but can be used from a command line interface or in standalone graphical applications.[3] PHP is a three-letter acronym that can mean: PHP - the open source programming language Parallel History Project Philippine peso This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Image File history File links PHP_logo. ... A programming paradigm is a fundamental style of computer programming. ... In computer science, imperative programming, as opposed to declarative programming, is a programming paradigm that describes computation in terms of a program state and statements that change the program state. ... Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. ... Rasmus Lerdorf (born November 22, 1968 in Qeqertarsuaq, Greenland) is a Danish-Canadian programmer and the author of the first version of the PHP web programming language. ... For other uses, see Software developer (disambiguation). ... A software release refers to the creation and availability of a new version of a computer software product. ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... In computer science, a type system defines how a programming language classifies values and expressions into types, how it can manipulate those types and how they interact. ... Look up Implementation in Wiktionary, the free dictionary. ... Roadsend PHP is an open source implementation of the PHP language. ... This article is being considered for deletion in accordance with Wikipedias deletion policy. ... Miku has an ability that allows her to sense the supernatural Fatal Frame (known as Project Zero in Japan and Europe) is a survival horror video game series, so far consisting of two games. ... In computing, C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ... For other uses, see Perl (disambiguation). ... Java language redirects here. ... For a WikiBook on programming with C++, see Wikibooks: C++ Programming. ... C# (see section on name, pronunciation) is an object-oriented programming language developed by Microsoft as part of the . ... Python is a general-purpose, high-level programming language. ... An operating system (OS) is a software that manages computer resources and provides programmers with an interface used to access those resources. ... A cross-platform (or platform independent) programming language, software application or hardware device works on more than one system platform (e. ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... For the PHP Cold War history project, see Parallel History Project. ... A website (alternatively, web site or Web site) is a collection of Web pages, images, videos or other digital assets that is hosted on one or more web servers, usually accessible via the Internet. ... A recursive acronym (or occasionally recursive initialism) is an abbreviation which refers to itself in the expression for which it stands. ... A scripting language, script language or extension language, is a programming language that controls software application. ... In classical hypertext navigation occurs among static documents, and, for web users, this experience is reproduced using static web pages. ... Server-side scripting is a web server technology in which a users request is fulfilled by running a script directly on the web server to generate dynamic HTML pages. ... This article or section does not adequately cite its references or sources. ... Stand-alone is a confusing and misleading term, used to refer to various categories of computer programs, but rarely in a consistent fashion. ... GUI redirects here. ...


While PHP was originally created by Rasmus Lerdorf in 1995, the main implementation of PHP is now produced by The PHP Group and serves as the de facto standard for PHP as there is no formal specification.[4] Released under the PHP License, the Free Software Foundation considers it to be free software.[5] Rasmus Lerdorf (born November 22, 1968 in Qeqertarsuaq, Greenland) is a Danish-Canadian programmer and the author of the first version of the PHP web programming language. ... De facto is a Latin expression that means in fact or in practice. It is commonly used as opposed to de jure (meaning by law) when referring to matters of law or governance or technique (such as standards), that are found in the common experience as created or developed without... A formal specification is a mathematical description of software or hardware that may be used to develop an implementation. ... For the PHP Cold War history project, see Parallel History Project. ... The Free Software Foundation (FSF) is a non-profit corporation founded in October 1985 by Richard Stallman to support the free software movement (free as in freedom), and in particular the GNU project. ... Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with minimal restrictions only to ensure that further recipients can also do these things. ...


PHP is a widely-used general-purpose scripting language that is especially suited for web development and can be embedded into HTML. It generally runs on a web server, taking PHP code as its input and creating web pages as output. It can be deployed on most web servers and on almost every operating system and platform free of charge.[6] PHP is installed on more than 20 million websites and 1 million web servers.[citation needed] It is also the most popular Apache module among computers using Apache as a web server.[7] The most recent major release of PHP was version 5.2.6 on May 1, 2008.[8] Web development is a broad term for any activities related to developing a web site for the World Wide Web or an intranet. ... HTML, an initialism of HyperText Markup Language, is the predominant markup language for web pages. ... The inside/front of a Dell PowerEdge web server The term Web server can mean one of two things: A computer program that is responsible for accepting HTTP requests from clients, which are known as Web browsers, and serving them HTTP responses along with optional data contents, which usually are... A screenshot of a web page. ... An operating system (OS) is a software that manages computer resources and provides programmers with an interface used to access those resources. ... In computing, a platform describes some sort of framework, either in hardware or software, which allows software to run. ... The inside/front of a Dell PowerEdge web server The term Web server can mean one of two things: A computer program that is responsible for accepting HTTP requests from clients, which are known as Web browsers, and serving them HTTP responses along with optional data contents, which usually are... The Apache HTTP Server, commonly referred to simply as Apache, is a web server notable for playing a key role in the initial growth of the World Wide Web. ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ...

Contents

History

Rasmus Lerdorf, who wrote the original Common Gateway Interface binaries, and Andi Gutmans and Zeev Suraski, who rewrote the parser that formed PHP 3 Rasmus Lerdorf, who wrote the original Common Gateway Interface binaries, and Andi Gutmans and Zeev Suraski, who rewrote the parser that formed PHP 3
Rasmus Lerdorf, who wrote the original Common Gateway Interface binaries, and Andi Gutmans and Zeev Suraski, who rewrote the parser that formed PHP 3

PHP originally stood for Personal Home Page. It began in 1994 as a set of Common Gateway Interface binaries written in the C programming language by the Danish/Greenlandic programmer Rasmus Lerdorf. Lerdorf initially created these Personal Home Page Tools to replace a small set of Perl scripts he had been using to maintain his personal homepage. The tools were used to perform tasks such as displaying his résumé and recording how much traffic his page was receiving.[4] He combined these binaries with his Form Interpreter to create PHP/FI, which had more functionality. PHP/FI included a larger C implementation and could communicate with databases enabling the building of simple, dynamic web applications. He released PHP publicly on June 8, 1995 to speed up the finding of bugs and improving the code.[9] This release was named PHP version 2 and already had the basic functionality that PHP has today. This included Perl-like variables, form handling, and the ability to embed HTML. The syntax was similar to Perl but was more limited, simpler, and less consistent.[4] Rasmus Lerdorf (born November 22, 1968 in Qeqertarsuaq, Greenland) is a Danish-Canadian programmer and the author of the first version of the PHP web programming language. ... The Common Gateway Interface (CGI) is a standard protocol for interfacing external application software with an information server, commonly a web server. ... Andi Gutmans is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... Zeev Suraski is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... A parser is a computer program or a component of a program that analyses the grammatical structure of an input, with respect to a given formal grammar, a process known as parsing. ... The Common Gateway Interface (CGI) is a standard protocol for interfacing external application software with an information server, commonly a web server. ... A Hexdump of a JPEG image. ... Wikibooks has a book on the topic of C Programming The C programming language (often, just C) is a general-purpose, procedural, imperative computer programming language developed in the early 1970s by Dennis Ritchie for use on the Unix operating system. ... Rasmus Lerdorf (born November 22, 1968 in Qeqertarsuaq, Greenland) is a Danish-Canadian programmer and the author of the first version of the PHP web programming language. ... For other uses, see Perl (disambiguation). ... A personal homepage is a web site belonging to one person. ... Look up résumé, curriculum vitae, resume in Wiktionary, the free dictionary. ... // Web traffic is the amount of data sent and received by visitors to a web site. ... In computing, C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ... This article is principally about managing and structuring the collections of data held on computers. ... In software engineering, a web application is an application delivered to users from a web server over a network such as the World Wide Web or an intranet. ... is the 159th day of the year (160th in leap years) in the Gregorian calendar. ... Year 1995 (MCMXCV) was a common year starting on Sunday. ... A software bug is an error, flaw, mistake, failure, or fault in a computer program that prevents it from behaving as intended (e. ...


Zeev Suraski and Andi Gutmans, two Israeli developers at the Technion IIT, rewrote the parser in 1997 and formed the base of PHP 3, changing the language's name to the recursive initialism PHP: Hypertext Preprocessor.[4] The development team officially released PHP/FI 2 in November 1997 after months of beta testing. Afterwards, public testing of PHP 3 began, and the official launch came in June 1998. Suraski and Gutmans then started a new rewrite of PHP's core, producing the Zend Engine in 1999.[10] They also founded Zend Technologies in Ramat Gan, Israel, which manages the development of PHP.[4] Zeev Suraski is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... Andi Gutmans is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... Computer Science Faculty Building The Technion – Israel Institute of Technology (Hebrew: ; commonly abbreviated as Technion IIT) is a university in Haifa, Israel, founded 1924. ... A parser is a computer program or a component of a program that analyses the grammatical structure of an input, with respect to a given formal grammar, a process known as parsing. ... A recursive acronym (or occasionally recursive initialism) is an abbreviation which refers to itself in the expression for which it stands. ... Software development stages In computer programming, development stage terminology expresses how the development of a piece of software has progressed and how much further development it may require. ... A rewrite in computer programming is the act or result of re-implementing a large portion of existing functionality without re-use of its source code. ... The Zend Engine is an open source scripting engine (a Virtual Machine), commonly known for the important role it plays in the web automation language PHP. It was originally developed by Andi Gutmans and Zeev Suraski while they were students at the Technion - Israel Institute of Technology. ... Zend Technologies Ltd. ... Ramat Gan (רמת-גן) is a city in Israel, on the central coastal strip, just east of Tel Aviv, and part of the metropolis known as Gush Dan, in the Tel Aviv District. ...


On May 22, 2000, PHP 4, powered by the Zend Engine 1.0, was released.[4] On July 13, 2004, PHP 5 was released, powered by the new Zend Engine II.[4] PHP 5 included new features such as improved support for object-oriented programming, the PHP Data Objects extension (which defines a lightweight and consistent interface for accessing databases), and numerous performance enhancements.[11] The most recent update released by The PHP Group is for the older PHP version 4 code branch. As of January 2008, this branch is up to version 4.4.8. PHP 4 is no longer under active development but will be supported by security updates until August 8, 2008.[12][13] is the 142nd day of the year (143rd in leap years) in the Gregorian calendar. ... Year 2000 (MM) was a leap year starting on Saturday. ... is the 194th day of the year (195th in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. ... is the 220th day of the year (221st in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ...


In 2008, PHP 5 became the only stable version under development. Late static binding has been missing from PHP and will be added in version 5.3.[14] [15] Alongside PHP 5, PHP 6 is also under active development. Major changes include the removal of register_globals[16], magic quotes, and safe mode.[12][17] Magic quotes are a controversial feature of the PHP scripting language intended to help prevent SQL injection attacks. ... Safe Mode is a diagnostic mode used by certain computer operating systems, including Microsoft Windows and Mac OS X, as well as other complex electronic devices. ...


PHP does not have complete native support for Unicode or multibyte strings;[18] unicode support will be included in PHP 6.[19] Many high profile open source projects ceased to support PHP 4 in new code as of February 5, 2008, due to the GoPHP5 initiative, provided by a consortium of PHP developers promoting the transition from PHP 4 to PHP 5.[20][21] The Unicode Standard, Version 5. ... is the 36th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ...


It runs in both 32-bit and 64-bit environments, but on Windows the only official distribution is 32-bit, requiring Windows 32-bit compatibility mode to be enabled while using IIS in a 64-bit Windows environment. There is a third-party distribution[22] available for 64-bit Windows. 32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32-bit chunks. ... In computing, a 64-bit component is one in which data are processed or stored in 64-bit units (words). ... IIS (Microsoft Internet Information Services or Server) is a set of Internet based services for Windows machines. ...


Release history

Meaning
Red Old release; not supported
Yellow Old release; still supported
Green Current release
Blue Future release
Major Version Minor Version Release date Notes
1.0 1.0.0 1995-06-08 Officially called "Personal Home Page Tools (PHP Tools)". This is the first use of the name "PHP".[4]
2.0 2.0.0 1996-04-16 Considered by its creator as the "fastest and simplest tool" for creating dynamic web pages.[4]
3.0 3.0.0 1998-06-06 Development moves from one person to multiple developers. Zeev Suraski and Andi Gutmans rewrite the base for this version.[4]
4.0 4.0.0 2000-05-22 Added more advanced two-stage parse/execute tag-parsing system called the Zend engine.[23]
4.1.0 2001-12-10 Introduced 'superglobals' ($_GET, $_POST, $_SESSION, etc.)[23]
4.2.0 2002-04-22 Disabled register_globals by default. Data received over the network is not inserted directly into the global namespace anymore, closing possible security holes in applications.[23][24]
4.3.0 2002-12-27 Introduced the CLI, in addition to the CGI.[23]
4.4.0 2005-07-11 Added man pages for phpize and php-config scripts.[23]
4.4.8 2008-01-03 Several security enhancements and bug fixes. End of life release for PHP 4. Security updates only until 2008-08-08, if necessary.[25][26]
5.0 5.0.0 2004-07-13 Zend Engine II with a new object model.[8]
5.1.0 2005-11-24 Performance improvements with introduction of compiler variables in re-engineered PHP Engine.[8]
5.2.0 2006-11-02 Enabled the filter extension by default.[8]
5.2.6 2008-05-01[27] Several security enhancements and bug fixes[28]
5.3.0 No date set Namespace support; Improved XML support through use of XMLReader and XMLWriter; SOAP support [29], Late static bindings, Jump label (limited goto)
6.0 6.0.0 No date set Unicode support; removal of 'ereg()', 'register_globals', 'magic_quotes' and 'safe_mode'; Alternative PHP Cache; Removal of mime_magic and rewrite of fileinfo() for better MIME support[30]

Year 1995 (MCMXCV) was a common year starting on Sunday. ... is the 159th day of the year (160th in leap years) in the Gregorian calendar. ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... is the 106th day of the year (107th in leap years) in the Gregorian calendar. ... Year 1998 (MCMXCVIII) was a common year starting on Thursday (link will display full 1998 Gregorian calendar). ... is the 157th day of the year (158th in leap years) in the Gregorian calendar. ... Year 2000 (MM) was a leap year starting on Saturday. ... is the 142nd day of the year (143rd in leap years) in the Gregorian calendar. ... This article is about the year. ... is the 344th day of the year (345th in leap years) in the Gregorian calendar. ... Also see: 2002 (number). ... is the 112th day of the year (113th in leap years) in the Gregorian calendar. ... In computer programming, a global variable is a variable that is accessible in every scope. ... Also see: 2002 (number). ... December 27 is the 361st day of the year in the Gregorian calendar (362nd in leap years). ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... is the 192nd day of the year (193rd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 3rd day of the year in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... is the 194th day of the year (195th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... is the 328th day of the year (329th in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 306th day of the year (307th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ... A namespace is a context in which a group of one or more identifiers might exist. ... GOTO is a statement found in many computer programming languages. ... The Unicode Standard, Version 5. ... For mime as an art form, see mime artist. ...

Usage

PHP is a general-purpose scripting language that is especially suited for web development. PHP generally runs on a web server, taking PHP code as its input and creating web pages as output. It can also be used for command-line scripting and client-side GUI applications. PHP can be deployed on most web servers, many operating systems and platforms, and can be used with many relational database management systems. It is available free of charge, and the PHP Group provides the complete source code for users to build, customize and extend for their own use.[6] Web development is a broad term for any activities related to developing a web site for the World Wide Web or an intranet. ... The inside/front of a Dell PowerEdge web server The term Web server can mean one of two things: A computer program that is responsible for accepting HTTP requests from clients, which are known as Web browsers, and serving them HTTP responses along with optional data contents, which usually are... A screenshot of a web page. ... A command line interface or CLI is a method of interacting with a computer by giving it lines of textual commands (that is, a sequence of characters) either from keyboard input or from a script. ... Client/Server is a network application architecture which separates the client (usually the graphical user interface) from the server. ... GUI redirects here. ... The inside/front of a Dell PowerEdge web server The term Web server can mean one of two things: A computer program that is responsible for accepting HTTP requests from clients, which are known as Web browsers, and serving them HTTP responses along with optional data contents, which usually are... An operating system (OS) is a software that manages computer resources and provides programmers with an interface used to access those resources. ... In computing, a platform describes some sort of framework, either in hardware or software, which allows software to run. ... A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd. ...


PHP primarily acts as a filter[31], taking input from a file or stream containing text and/or PHP instructions and outputs another stream of data; most commonly the output will be HTML. It can automatically detect the language of the user.[32][33] From PHP 4, the PHP parser compiles input to produce bytecode for processing by the Zend Engine, giving improved performance over its interpreter predecessor.[34] A filter is a computer program to process a data stream. ... A parser is a computer program or a component of a program that analyses the grammatical structure of an input, with respect to a given formal grammar, a process known as parsing. ... This article is about the computing term. ... Bytecode is a binary representation of an executable program designed to be executed by a virtual machine rather than by dedicated hardware. ... The Zend Engine is an open source scripting engine (a Virtual Machine), commonly known for the important role it plays in the web automation language PHP. It was originally developed by Andi Gutmans and Zeev Suraski while they were students at the Technion - Israel Institute of Technology. ... In computer science, an interpreter is a computer program that executes, or performs, instructions written in a computer programming language. ...


Originally designed to create dynamic web pages, PHP's principal focus is server-side scripting[35], and it is similar to other server-side scripting languages that provide dynamic content from a web server to a client, such as Microsoft's ASP.NET system, Sun Microsystems' JavaServer Pages[36], and mod_perl. PHP has also attracted the development of many frameworks that provide building blocks and a design structure to promote rapid application development (RAD). Some of these include CakePHP, PRADO, Symfony and Zend Framework, offering features similar to other web application frameworks. Server-side scripting is a web server technology in which a users request is fulfilled by running a script directly on the web server to generate dynamic HTML pages. ... In computing, a client is a system that accesses a (remote) service on another computer by some kind of network. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... ASP.NET logo ASP.NET is a web application framework marketed by Microsoft that programmers can use to build dynamic web sites, web applications and XML web services. ... Sun Microsystems, Inc. ... // JavaServer Pages (JSP) is a Java technology that allows software developers to dynamically generate HTML, XML or other types of documents in response to a Web client request. ... mod_perl is an optional module for the Apache web server. ... A software framework is a reusable design for a software system (or subsystem). ... Rapid application development (RAD), is a software development process developed initially by James Martin in the 1980s. ... CakePHP is an open source web application framework written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License. ... Prado may refer to: Land Cruiser Prado, a 4WD vehicle from Toyota Museo del Prado, an art gallery in Madrid Prado, Spain, a village in Castile-Leon the prado dam Prado River Miguelanxo Prado, a spanish comic book artist Ed Prado, a U.S. appeals court judge PRADO, a PHP... Symfony is a web application framework written in PHP which follows the model-view-controller (MVC) paradigm. ... Zend Framework is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License. ... This is a list of notable web application frameworks, used for creating web applications. ...


The LAMP architecture has become popular in the web industry as a way of deploying web applications. PHP is commonly used as the P in this bundle alongside Linux, Apache and MySQL, although the P may also refer to Python or Perl. The acronym LAMP refers to a solution stack of software, usually free software / open-source software, used to run dynamic Web sites or servers. ... This article is about operating systems that use the Linux kernel. ... The Apache HTTP Server, commonly referred to simply as Apache, is a web server notable for playing a key role in the initial growth of the World Wide Web. ... MySQL (pronounced (IPA) , my S-Q-L[1]) is a multithreaded, multi-user SQL database management system (DBMS)[2] which has, according to MySQL AB, more than 10 million installations. ... Python is a general-purpose, high-level programming language. ... For other uses, see Perl (disambiguation). ...


As of April 2007, over 20 million Internet domains were hosted on servers with PHP installed, and PHP was recorded as the most popular Apache module.[7]


Security

Insecure scripts written in PHP are popular targets of hackers who exploit poorly built applications written in PHP. Software vulnerabilities related to PHP are identified among the CVE (Common Vulnerabilities and Exposures) records, available from the National Vulnerability Database. The proportion of vulnerabilities related to PHP, out of the total of all common vulnerabilities, amounted to: 12% in 2003, 20% in 2004, 28% in 2005, 43% in 2006, 36% in 2007, and 33.8% for the first quarter of 2008. More than a quarter of all software vulnerabilities listed in this database are related to scripts written in PHP, and more than a third of vulnerabilities listed recently. Most of these vulnerabilities can be exploited remotely, that is without being logged on the computer hosting the vulnerable application.[37] Such exploitation is made possible due to poor programming habits, such as failing to check data before entering it into a database, and features of the language such as register_globals, which is now deprecated.[24] These result in code injection, cross-site scripting and other application security issues. Such attacks are not exclusive to PHP and most can be avoided simply by following proper coding techniques and principles. This article is about computer security hackers. ... The Common Vulnerabilities and Exposures (CVE) list provides an index of standardized names for vulnerabilities and other information security exposures - CVE aims to standardize the names for all publicly known vulnerabilities and security exposures. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which allow code injection by malicious web users into the web pages viewed by other users. ... Application Security encompasses measures taken to prevent exceptions in the applications or the underlying systems security policy (vulnerabilities) through flaws in the application’s design, development, or deployment. ...


Syntax

Main article: PHP syntax and semantics
Syntax-highlighted PHP code
Syntax-highlighted PHP code

PHP only parses code within its delimiters. Anything outside its delimiters is sent directly to the output and is not parsed by PHP. The most common delimiters are <?php and ?>, which are open and close delimiters respectively. <script language="php"> and </script> delimiters are also available. Short tags (<? or <?= and ?>) are also commonly used, but like ASP-style tags (<% or <%= and %>), they are less portable as they can be disabled in the PHP configuration. For this reason, the use of short tags and ASP-style tags is discouraged.[38] The purpose of these delimiters is to separate PHP code from non-PHP code, including HTML. Everything outside the delimiters is ignored by the parser and is passed through as output.[39] Delimiters are marks which are used to seperate subfields of data. ...


Variables are prefixed with a dollar symbol and a type does not need to be specified in advance. Unlike function and class names, variable names are case sensitive. Both double-quoted ("") and heredoc strings allow the ability to embed a variable's value into the string.[40] PHP treats newlines as whitespace in the manner of a free-form language (except when inside string quotes), and statements are terminated by a semicolon.[41] PHP has three types of comment syntax: /* */ serves as block comments, and // as well as # are used for inline comments.[42] $ redirects here. ... In computer science, primitive types — as distinct from composite types — are data types provided by a programming language as basic building blocks. ... heredoc (or here-document) is a way of quoting large amounts of texts in shells and programming languages. ... In computing, a newline is a special character or sequence of characters signifying the end of a line of text. ... For other uses, see white space. ... In computer programming, a free-form language is a programming language in which the positioning of characters on the page in program text is not significant. ... // Programming language statements typically have conventions for: statement separators; statement terminators; and line continuation A statement separator is used to demarcate boundaries between two separate statements. ...


To output text to the browser, either the print function or the echo function is used. Both functions are nearly identical; the major difference is that print is slower than echo because the former will return the integer value of 1 in order to behave more like a function, rather than a language construct, whereas the latter does not return a status and only returns the text for output.[43] Because print will behave more like a function, it can be used in expressions where echo cannot. It is important to understand however that both are considered language constructs and not functions, the only difference is in their behavior, as outlined above.[44] A syntactically allowable part of a program that may be formed from one or more lexical tokens in accordance with the rules of a programming language. ...


Data types

PHP stores whole numbers in a platform-dependent range. This range is typically that of 32-bit signed integers. Unsigned integers are converted to signed values in certain situations; this behavior is different from other programming languages.[45] Integer variables can be assigned using decimal (positive and negative), octal, and hexadecimal notations. Real numbers are also stored in a platform-specific range. They can be specified using floating point notation, or two forms of scientific notation.[46] PHP has a native Boolean type that is similar to the native Boolean types in Java and C++. Using the Boolean type conversion rules, non-zero values are interpreted as true and zero as false, as in Perl and C++.[46] The null data type represents a variable that has no value. The only value in the null data type is NULL.[46] Variables of the "resource" type represent references to resources from external sources. These are typically created by functions from a particular extension, and can only be processed by functions from the same extension; examples include file, image, and database resources.[46] Arrays can contain elements of any type that PHP can handle, including resources, objects, and even other arrays. Order is preserved in lists of values and in hashes with both keys and values, and the two can be intermingled.[46] PHP also supports strings, which can be used with single quotes, double quotes, or heredoc syntax.[47] In mathematics, negative numbers in any base are represented in the usual way, by prefixing them with a − sign. ... In computer science, the term integer is used to refer to any data type which can represent some subset of the mathematical integers. ... The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. ... In mathematics and computer science, hexadecimal, base-16, or simply hex, is a numeral system with a radix, or base, of 16, usually written using the symbols 0–9 and A–F, or a–f. ... Please refer to Real vs. ... A floating-point number is a digital representation for a number in a certain subset of the rational numbers, and is often used to approximate an arbitrary real number on a computer. ... Scientific notation, also known as standard form, is a notation for writing numbers that is often used by scientists and mathematicians to make it easier to write large and small numbers. ... In computer science, the Boolean datatype, sometimes called the logical datatype, is a primitive datatype having one of two values: non-zero (often 1, or -1) and zero (which are equivalent to true and false, respectively). ... Java language redirects here. ... C++ (pronounced ) is a general-purpose programming language. ... In computer science, a hash table is a data structure that speeds up searching for information by a particular aspect of that information, called a key. ... In various branches of mathematics and computer science, strings are sequences of various simple objects (symbols, tokens, characters, etc. ... heredoc (or here-document) is a way of quoting large amounts of texts in shells and programming languages. ...


Functions

PHP has hundreds of base functions and thousands more from extensions. Functions are not first-class functions and can only be referenced by their name. [48] User-defined functions can be created at any time without being prototyped.[48] Functions can be defined inside code blocks, permitting a run-time decision as to whether or not a function should be defined. Function calls must use parentheses, with the exception of zero argument class constructor functions called with the PHP new operator, where parentheses are optional. PHP supports quasi-anonymous functions through the create_function() function, although they are not true anonymous functions because anonymous functions are nameless, but functions can only be referenced by name, or indirectly through a variable $function_name();, in PHP.[48] In computer science, a programming language is said to support first-class functions if it treats functions as first-class objects. ... In computer science, dynamic dispatch is the process of mapping a message to a specific sequence of code (method) at runtime. ... In object-oriented programming, a constructor (sometimes shortened to ctor) in a class is a special block of statements called when an object is created, either when it is declared (statically constructed on the stack, possible in C++ but not in Java and other object-oriented languages) or dynamically constructed... An anonymous function is a function (or a subroutine) defined, and possibly called, without being bound to a name. ...


Objects

Basic object-oriented programming functionality was added in PHP 3.[4] Object handling was completely rewritten for PHP 5, expanding the feature set and enhancing performance.[49] In previous versions of PHP, objects were handled like primitive types.[49] The drawback of this method was that the whole object was copied when a variable was assigned or passed as a parameter to a method. In the new approach, objects are referenced by handle, and not by value. PHP 5 introduced private and protected member variables and methods, along with abstract classes and final classes as well as abstract methods and final methods. It also introduced a standard way of declaring constructors and destructors, similar to that of other object-oriented languages such as C++, and a standard exception handling model. Furthermore, PHP 5 added interfaces and allowed for multiple interfaces to be implemented. There are special interfaces that allow objects to interact with the runtime system. Objects implementing ArrayAccess can be used with array syntax and objects implementing Iterator or IteratorAggregate can be used with the foreach language construct. There is no virtual table feature in the engine, so static variables are bound with a name instead of a reference at compile time.[50] Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design applications and computer programs. ... In computer science, primitive types — as distinct from composite types — are data types provided by a programming language as basic building blocks. ... In computer science, a smart pointer is an abstract data type that simulates a pointer while providing additional features, such as automatic garbage collection or bounds checking. ... Member Variables are variables that only occur within a certain class or method of a program. ... In software engineering, an abstract type is a type in a nominative type system which is declared by the programmer, and which has the property that it contains no members which are also not members of some declared subtype. ... Used mainly in object-oriented programming, the term method refers to a piece of code that is exclusively associated either with a class (called class methods or static methods) or with an object (called instance methods). ... In object-oriented programming, a constructor (sometimes shortened to ctor) in a class is a special block of statements called when an object is created, either when it is declared (statically constructed on the stack, possible in C++ but not in Java and other object-oriented languages) or dynamically constructed... In object-oriented programming, a destructor (sometimes shortened to dtor) is a method which is automatically invoked when the object is destroyed. ... C++ (pronounced ) is a general-purpose programming language. ... Exception handling is a programming language construct or computer hardware mechanism designed to handle the occurrence of some condition that changes the normal flow of execution. ... In general usage, an interface is the point, area, or surface along which two substances or other qualitatively different things meet; it is also used metaphorically for the juncture between items. ... WordNet gives four main senses for the English noun object: a physical entity; something that is within the grasp of the senses; an aim, target or objective — see Object (task); a grammatical Object — either a direct object or an indirect object the focus of cognitions or feelings. ... WordNet gives four main senses for the English noun object: a physical entity; something that is within the grasp of the senses; an aim, target or objective — see Object (task); a grammatical Object — either a direct object or an indirect object the focus of cognitions or feelings. ... In computer science, an iterator is an object which allows a programmer to traverse through all the elements of a collection, regardless of its specific implementation. ... A virtual table, or vtable, is a mechanism used in Programming languages to support dynamic polymorphism, i. ... In computer programming, static variables typically have a broader scope than other variables. ...


If the developer creates a copy of an object using the reserved word clone, the Zend engine will check if a __clone() method has been defined or not. If not, it will call a default __clone() which will copy the object's properties. If a __clone() method is defined, then it will be responsible for setting the necessary properties in the created object. For convenience, the engine will supply a function that imports the properties of the source object, so that the programmer can start with a by-value replica of the source object and only override properties that need to be changed.[51]


Resources

PHP includes free and open source libraries with the core build. PHP is a fundamentally Internet-aware system with modules built in for accessing FTP servers, many database servers, embedded SQL libraries such as embedded MySQL and SQLite, LDAP servers, and others. Many functions familiar to C programmers such as those in the stdio family are available in the standard PHP build.[52] PHP has traditionally used features such as "magic_quotes_gpc" and "magic_quotes_runtime" which attempt to escape apostrophes (') and quotes (") in strings in the assumption that they will be used in databases, to prevent SQL injection attacks. This leads to confusion over which data is escaped and which is not, and to problems when data is not in fact used as input to a database and when the escaping used is not completely correct.[53] To make code portable between servers which do and do not use magic quotes, developers can preface their code with a script to reverse the effect of magic quotes when it is applied.[54] This is the present list of all officially documented libraries for the PHP programming language. ... This article is about the File Transfer Protocol standardised by the IETF. For other file transfer protocols, see File transfer protocol (disambiguation). ... MySQL (pronounced (IPA) , my S-Q-L[1]) is a multithreaded, multi-user SQL database management system (DBMS)[2] which has, according to MySQL AB, more than 10 million installations. ... SQLite is a mostly ACID-compliant relational database management system contained in a relatively small (~500kb) C programming library. ... The Lightweight Directory Access Protocol, or LDAP (IPA: ), is an application protocol for querying and modifying directory services running over TCP/IP.[1] A directory is a set of objects with similar attributes organized in a logical and hierarchical manner. ... It has been suggested that Wikipedia:WikiProject C/stdio. ... Magic quotes are a controversial feature of the PHP scripting language intended to help prevent SQL injection attacks. ... SQL injection is a technique that exploits a security vulnerability occurring in the database layer of an application. ...


PHP allows developers to write extensions in C to add functionality to the PHP language. These can then be compiled into PHP or loaded dynamically at runtime. Extensions have been written to add support for the Windows API, process management on Unix-like operating systems, multibyte strings (Unicode), cURL, and several popular compression formats. Some more unusual features include integration with Internet relay chat, dynamic generation of images and Adobe Flash content, and even speech synthesis. The PHP Extension Community Library (PECL) project is a repository for extensions to the PHP language.[55] This article is about the extension mechanism. ... In computing, C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ... The Windows API, informally WinAPI, is the name given by Microsoft to the core set of application programming interfaces (APIs) available in the Microsoft Windows operating systems. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... An operating system (OS) is a software that manages computer resources and provides programmers with an interface used to access those resources. ... The Unicode Standard, Version 5. ... For other uses, see Curl (disambiguation). ... This article is about Internet Relay Chat. ... Adobe Flash (previously called Shockwave Flash and Macromedia Flash) is a set of multimedia technologies developed and distributed by Adobe Systems and earlier by Macromedia. ... Speech synthesis is the artificial production of human speech. ... The PHP Extension and Application Repository, or PEAR, is a framework and distribution system for PHP code components. ...


As with many scripting languages, PHP scripts are normally kept as human-readable source code, even on production web servers.[56] While this allows flexibility, releasing scripts in source form is undesirable for commercial software developers, and can raise issues with security of web servers; as an example, if a hacker acquires control of a server, database passwords may be quickly discovered, and undesirable changes to scripts may be made that remain undiscovered indefinitely.


Code optimizers improve the quality of the compiled code by reducing its size and making changes that can reduce the execution time and improve performance. The nature of the PHP compiler is such that there are often opportunities for code optimization[57], and an example of a code optimizer is the Zend Optimizer PHP extension.[58] This article is about the computing term. ... In computing, optimization is the process of modifying a system to make some aspect of it work more efficiently or use fewer resources. ... A PHP accelerator is an extension designed to boost the performance of software applications written using the PHP programming language. ...


PHP accelerators can offer significant performance gains by caching the compiled form of a PHP script in shared memory to avoid the overhead of parsing and compiling the code every time the script runs. A PHP accelerator is an extension designed to boost the performance of software applications written using the PHP programming language. ... This article is about the computer term. ... // Diagram of a typical Shared memory system. ... An example of parsing a mathematical expression. ... A compiler is a computer program that translates a computer program written in one computer language (called the source language) into an equivalent program written in another computer language (called the output or the target language). ...


Certification

Zend provides a certification program for programmers to become certified PHP developers.


See also

Free software portal

Image File history File links Free_Software_Portal_Logo. ... Programming languages are used for controlling the behavior of a machine (often a computer). ... This article contains a list of editors suitable for use with the PHP scripting language. ... This is a list of notable web application frameworks, used for creating web applications. ... A PHP accelerator is an extension designed to boost the performance of software applications written using the PHP programming language. ... Zend Framework is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License. ...

Notes

  1. ^ PHP Snapshots. The PHP Group. Retrieved on 2008-03-16.
  2. ^ Newman, Chris [April 2005]. Sams Teach Yourself PHP in 10 Minutes, Sams Teach Yourself. Sams Publishing, p. 5. ISBN 0-672-32762-7. 
  3. ^ Introduction. PHP Manual. Retrieved on 2006-11-15.
  4. ^ a b c d e f g h i j k History of PHP and related projects. The PHP Group. Retrieved on 2008-02-25.
  5. ^ GPL-Incompatible, Free Software Licenses. Various Licenses and Comments about Them. Free Software Foundation. Retrieved on 2008-02-22.
  6. ^ a b Embedding PHP in HTML. O'Reilly (2001-05-03). Retrieved on 2008-02-25.
  7. ^ a b PHP: PHP Usage Stats. SecuritySpace (2007-04-01). Retrieved on 2008-02-24.
  8. ^ a b c d PHP: PHP 5 ChangeLog. The PHP Group (2007-11-08). Retrieved on 2008-02-22.
  9. ^ Lerdorf, Rasmus (1995-06-08). "Announce: Personal Home Page Tools (PHP Tools)". comp.infosystems.www.authoring.cgi. (Web link). Retrieved on 2006-09-17.
  10. ^ Zend Engine version 2.0: Feature Overview and Design. Zend Technologies Ltd.. Retrieved on 2006-09-17.
  11. ^ Trachtenberg, Adam (2004-07-15). Why PHP 5 Rocks!. O'Reilly. Retrieved on 2008-02-22.
  12. ^ a b php.net 2007 news archive. The PHP Group (2007-07-13). Retrieved on 2008-02-22.
  13. ^ Kerner, Sean Michael (2008-02-01). PHP 4 is Dead—Long Live PHP 5. InternetNews. Retrieved on 2008-03-16.
  14. ^ Late Static Binding in PHP. Digital Sandwich (2006-02-23). Retrieved on 2008-03-25.
  15. ^ Static Keyword. The PHP Group. Retrieved on 2008-03-25.
  16. ^ Using Register Globals. PHP. Retrieved on 2008-04-04.
  17. ^ Prepare for PHP 6. CorePHP (2005-11-23). Retrieved on 2008-03-24.
  18. ^ PHP 6 - Unicode Completion Stats. The PHP Group (2008-03-25). Retrieved on 2008-03-25.
  19. ^ Unicode. The PHP Group. Retrieved on 2008-03-25.
  20. ^ GoPHP5. PHP projects join forces to Go PHP 5. GoPHP5 Press Release. Retrieved on 2008-02-23.
  21. ^ GoPHP5. GoPHP5. Retrieved on 2008-02-22.
  22. ^ Fusion-X LAN. The PHPx64 Project. Fusion-X LAN. Retrieved on 2008-05-05.
  23. ^ a b c d e PHP: PHP 4 ChangeLog. The PHP Group (2008-01-03). Retrieved on 2008-02-22.
  24. ^ a b Using Register Globals (2008-03-08). Retrieved on 2008-03-08.
  25. ^ PHP: Downloads
  26. ^ PHP: PHP 4.4.8 Release Announcement
  27. ^ PHP: News Archive - 2008
  28. ^ PHP: News Archive - 2008
  29. ^ Zend Weekly Summaries Issue #359
  30. ^ Personal homepage of Jeroen van der Meer
  31. ^ What does PHP do?. The PHP Group. Retrieved on 2008-02-25.
  32. ^ PHP Language Detection :: Detect System Languages, set headers :: $_SERVER["HTTP_ACCEPT_LANGUAGE"]
  33. ^ Visitor’s language detection in php | Urbano's Blog
  34. ^ PHP and MySQL. University of Alabama. Retrieved on 2008-02-25.
  35. ^ PHP Server-Side Scripting Language. Indiana University (2007-04-04). Retrieved on 2008-02-25.
  36. ^ JavaServer Pages Technology - JavaServer Pages Comparing Methods for Server-Side Dynamic Content White Paper. Sun Microsystems. Retrieved on 2008-02-25.
  37. ^ PHP-related vulnerabilities on the National Vulnerability Database (2008-03-01).
  38. ^ PHP: Basic syntax. The PHP Group. Retrieved on 2008-02-22.
  39. ^ Your first PHP-enabled page. The PHP Group. Retrieved on 2008-02-25.
  40. ^ Variables. The PHP Group. Retrieved on 2008-03-16.
  41. ^ Instruction separation. The PHP Group. Retrieved on 2008-03-16.
  42. ^ Comments. The PHP Group. Retrieved on 2008-03-16.
  43. ^ print. The PHP Group. Retrieved on 2008-03-16.
  44. ^ Differences Between Print And Echo. php.faqts. Retrieved on 2008-06-10.
  45. ^ Integers in PHP, running with scissors, and portability. MySQL Performance Blog (27 March 2007). Retrieved on 2007-03-28.
  46. ^ a b c d e Types. The PHP Group. Retrieved on 2008-03-16.
  47. ^ Strings. The PHP Group. Retrieved on 2008-03-21.
  48. ^ a b c Functions. The PHP Group. Retrieved on 2008-03-16.
  49. ^ a b PHP 5 Object References. mjtsai. Retrieved on 2008-03-16.
  50. ^ Classes and Objects (PHP 5). The PHP Group. Retrieved on 2008-03-16.
  51. ^ Object cloning. The PHP Group. Retrieved on 2008-03-16.
  52. ^ PHP Function List. The PHP Group. Retrieved on 2008-02-25.
  53. ^ Lerdorf, Rasmus (2005-08-12). PHP 6.0 Wishlist. The PHP Group. Retrieved on 2008-03-25.
  54. ^ Disabling Magic Quotes. The PHP Group. Retrieved on 2008-03-25.
  55. ^ Developing Custom PHP Extensions. devnewz (2002-09-09). Retrieved on 2008-02-25.
  56. ^ (Gilmore 2006, p. 43)
  57. ^ PHP Accelerator 1.2 (page 3, Code Optimisation). Nick Lindridge. Retrieved on 2008-03-28.
  58. ^ Setting Up Zend Optimizer Tutorial. WebHostGear. Retrieved on 2008-03-16.

2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 319th day of the year (320th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... This article is about the year. ... is the 123rd day of the year (124th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 91st day of the year (92nd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 55th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 312th day of the year (313th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... Year 1995 (MCMXCV) was a common year starting on Sunday. ... is the 159th day of the year (160th in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 260th day of the year (261st in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 260th day of the year (261st in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... is the 196th day of the year (197th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 194th day of the year (195th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 32nd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 54th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 94th day of the year (95th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... is the 327th day of the year (328th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 83rd day of the year (84th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 54th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 125th day of the year (126th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 3rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 67th day of the year (68th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 67th day of the year (68th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 94th day of the year (95th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 60th day of the year (61st in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 53rd day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 161st day of the year (162nd in leap years) in the Gregorian calendar. ... is the 86th day of the year (87th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... Year 2007 (MMVII) was a common year starting on Monday of the Gregorian calendar in the 21st century. ... is the 87th day of the year (88th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 80th day of the year (81st in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... is the 224th day of the year (225th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 84th day of the year (85th in leap years) in the Gregorian calendar. ... Also see: 2002 (number). ... is the 252nd day of the year (253rd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 56th day of the year in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 87th day of the year (88th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Common Era (or Anno Domini), in accordance with the Gregorian calendar. ... is the 75th day of the year (76th in leap years) in the Gregorian calendar. ...

References

  • Gilmore, W. Jason (2006), Beginning PHP and MySQL 5: From Novice to Professional, Apress, ISBN 1590595521, <http://www.amazon.com/Beginning-PHP-MySQL-Novice-Professional/dp/1590595521> 

Apress is a computer book publisher founded by Gary Cornell. ...

Further reading

Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 118th day of the year (119th in leap years) in the Gregorian calendar. ... Programming Perl is a classic OReilly book. ...

External links

Wikibooks
Wikibooks has a book on the topic of
Wikiversity
At Wikiversity, you can learn about:
PHP
v • d • e
PHP
People
Andi Gutmans · Rasmus Lerdorf · Johannes Schlüter · Zeev Suraski
Resources
Zend Engine · Libraries · PEAR · Editors · Accelerator · Standard PHP Library
v • d • e
Free and open source software
General
Free software
portal
History
Operating systems
BSD · Darwin · GNU · Linux · Minix · OpenSolaris · ReactOS
Development
GCC · LLVM · PHP · Python · Perl · Java
Window managers
Blackbox · EDE · Enlightenment · Étoilé · Fluxbox · GNOME · IceWM · KDE · LiteStep · Openbox · ROX · Window Maker · Xfce
Organizations
Licences
Apache · BSD · GPL · LGPL · MIT · MPL · Permissive free software licences · License proliferation
Challenges
Binary blob · Digital rights management · Open source software security · Proprietary software · SCO-Linux controversies · Software patents and free software · Tivoization · Trusted Computing
Other topics
Alternative terms · Community · Movement · Comparison of open source and closed source · Free and open source software · Revolution OS
Image File history File links Wikibooks-logo-en. ... Wikibooks logo Wikibooks, previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks, is a wiki for the creation of books. ... Image File history File links This is a lossless scalable vector image. ... Wikiversity logo Wikiversity is a Wikimedia Foundation beta project[1], devoted to learning materials and activities, located at www. ... The Open Directory Project (ODP), also known as dmoz (from , its original domain name), is a multilingual open content directory of World Wide Web links owned by Netscape that is constructed and maintained by a community of volunteer editors. ... Andi Gutmans is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... Rasmus Lerdorf (born November 22, 1968 in Qeqertarsuaq, Greenland) is a Danish-Canadian programmer and the author of the first version of the PHP web programming language. ... Zeev Suraski is an Israeli programmer, PHP developer and co-founder of Zend Technologies. ... The Zend Engine is an open source scripting engine (a Virtual Machine), commonly known for the important role it plays in the web automation language PHP. It was originally developed by Andi Gutmans and Zeev Suraski while they were students at the Technion - Israel Institute of Technology. ... This is the present list of all officially documented libraries for the PHP programming language. ... It has been suggested that DB DataObject FormBuilder be merged into this article or section. ... This article contains a list of editors suitable for use with the PHP scripting language. ... A PHP accelerator is an extension designed to boost the performance of software applications written using the PHP programming language. ... Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with minimal restrictions only to ensure that further recipients can also do these things. ... The logo of the Open Source Initiative For other uses, see open source. ... The Common Unix Printing System (CUPS) is a modular computer printing system for Unix-like operating systems that allows a computer to act as a powerful print server. ... The Free Software Definition is a definition published by Free Software Foundation (FSF) for what constitutes free software. ... The GNU logo, drawn by Etienne Suvasa The GNU Project was announced in 1983 by Richard Stallman. ... This is a list of open-source software packages: computer software licensed under an open-source license. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... “X11” redirects here. ... Image File history File links Tux. ... Image File history File links Portal. ... This article or section does not adequately cite its references or sources. ... This timeline shows the development of the Linux kernel. ... Mozilla was the official, public, original name of Mozilla Application Suite by the Mozilla Foundation, currently known as SeaMonkey suite. ... Mozilla Application Suite began as an open source base of the Netscape suite. ... The Mozilla Firefox project was created by Dave Hyatt and Blake Ross as an experimental branch of the Mozilla project. ... Originally launched as Minotaur shortly after Phoenix (the original name for Mozilla Firefox), the project failed to gain momentum. ... These tables compare the various free software / open source operating systems. ... BSD redirects here. ... Darwin is a free and open source, Unix-like operating system first released by Apple Inc. ... GNU (pronounced ) is a computer operating system composed entirely of free software. ... This article is about operating systems that use the Linux kernel. ... MINIX is a free/open source, Unix-like operating system (OS) based on a microkernel architecture. ... OpenSolaris is an open source project created by Sun Microsystems to build a developer community around Solaris Operating System technology. ... ReactOS is a project to develop an operating system that is binary-compatible with application software and device drivers for Microsoft Windows NT version 5. ... Open source software development is the process by which open source software (or similar software whose source is publicly available) is developed. ... The GNU Compiler Collection (usually shortened to GCC) is a set of programming language compilers produced by the GNU Project. ... Low Level Virtual Machine, generally known as LLVM, is a compiler infrastructure designed for compile-time, link-time, run-time, and idle-time optimization of programs written in arbitrary programming languages. ... Python is a general-purpose, high-level programming language. ... For other uses, see Perl (disambiguation). ... Java language redirects here. ... The tone or style of this article or section may not be appropriate for Wikipedia. ... In Unix computing, Blackbox is a window manager for the X Window System. ... EDE or Equinox Desktop Environment is a small desktop environment that is meant to be simple and fast. ... Enlightenment, also known simply as E, is a free software/open source window manager for the X Window System which can be used alone or in conjunction with a desktop environment such as GNOME or KDE. It has a rich feature set, including extensive support for themes and advanced graphics... Étoilé is a GNUstep-based free software desktop environment built from the ground up on highly modular and light components with project and document orientation in mind, in order to allow users to create their own workflow by reshaping or recombining provided Services (aka Applications), Components, etc. ... In Unix computing, Fluxbox is an X window manager based on Blackbox. ... This article is about the mythical creature. ... In Unix computing, IceWM is a window manager for the X Window System graphical infrastructure, written by Marko Maček. ... For the NYSE stock ticker symbol KDE, see 4Kids Entertainment. ... screenshot of a LiteStep enabled Windows computer, running the NonStep II theme LiteStep is a Windows shell replacement licensed under the GPL, for Windows 9x and up. ... Openbox is a free window manager for the X Window System, licensed under the GNU General Public License. ... A screenshot of the ROX desktop. ... Window Maker is a window manager for the X Window System, which allows graphical applications to be run on Unix-like operating-systems. ... Xfce ([1]) is a free software desktop environment for Unix and other Unix-like platforms, such as Linux, Solaris and BSD. It aims to be fast and lightweight, while still being visually appealing and easy to use. ... The Free Software Foundation (FSF) is a non-profit corporation founded in October 1985 by Richard Stallman to support the free software movement (free as in freedom), and in particular the GNU project. ... The Free Software Foundation Europe (FSFE, or FSF Europe) was founded in 2001 as an official European sister organization of the U.S.-based Free Software Foundation (FSF) to take care of all aspects of free software in Europe. ... The Free Software Foundation India (FSF-India), founded in 2001, is a sister organisation to Free Software Foundation. ... Free Software Foundation Latin America (FSFLA) is the Latin American sister organisation of Free Software Foundation. ... The Linux Foundation (LF) is a non-profit consortium dedicated to fostering the growth of Linux. ... The Mountain View office shared by the Mozilla Foundation and the Mozilla Corporation The Mozilla Foundation (abbreviated MF or MoFo) is a non-profit organization that exists to support and provide leadership for the open source Mozilla project. ... The Open Source Initiative is an organization dedicated to promoting open source software. ... A free software licence is a software licence which grants recipients rights to modify and redistribute the software which would otherwise be prohibited by copyright law. ... The Apache License (Apache Software License previous to version 2. ... The BSD daemon BSD licenses represent a family of permissive free software licenses. ... GPL redirects here. ... The GNU Lesser General Public License (formerly the GNU Library General Public License) or LGPL is a free software license published by the Free Software Foundation. ... The MIT License, also called the X License or the X11 License, originated at the Massachusetts Institute of Technology, is a license for the use of certain types of computer software. ... -1... Permissive free software licences are software licences for a copyrighted work that offer many of the same freedoms as releasing a work to the public domain. ... This article is about drivers. ... Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. ... Proprietary software is software with restrictions on copying and modifying as enforced by the proprietor. ... The SCO-Linux controversies are a series of legal and public disputes between the software company SCO Group (SCO) and various Linux vendors and users. ... Opposition to software patents is widespread in the free software community. ... Tivoization is the creation of a system that incorporates software under the terms of a copyleft software license, but uses hardware to prevent users from running modified versions of the software on that hardware. ... Logo of Trusted Computing Group, an initiative to implement Trusted Computing Trusted Computing (commonly abbreviated TC) is a technology developed and promoted by the Trusted Computing Group (TCG). ... From the early 90s onward, alternative terms for free software have come into common use, with much debate in the free software community. ... // The free software community is also called the open source community or the Linux community. ... The free software movement, also known as the free software philosophy, began in 1983 when Richard Stallman announced the GNU Project. ... For the specific comparison of the open source Linux operating system with the closed source Windows Operating system please see Comparison of Windows and Linux Open source (or free software) and closed source (or proprietary software) are two approaches to the control, exploitation and commercializing of computer software. ... Free and Open Source Software, also F/OSS or FOSS, is software which is liberally licensed to grant the right of users to study, change, and improve its design through the availability of its source code. ... Promotional poster for two disc edition of Revolution OS Revolution OS is a documentary which traces the history of GNU, Linux, Free Software and the Open Source movement. ...

  Results from FactBites:
 
PHP - Wikipedia, the free encyclopedia (2155 words)
PHP was originally designed as a small set of Perl scripts, followed by a rewritten set of CGI binaries written in C by the Danish-Canadian programmer Rasmus Lerdorf in 1994 to display his résumé and to collect certain data, such as how much traffic his page was receiving.
PHP was originally designed to be used in conjunction with a web server, and acts as a filter which takes a file containing text and special PHP instructions and converts it to another form for display.
PHP does not enforce the declaration of variables prior to their use, and variables which have not been initialized can have operations (such as concatenation) performed on them; an operation on an uninitialized variable raises an E_NOTICE level error, but this is hidden by default.
PHP Tutorial - Part 1 (859 words)
PHP stands for Hypertext Preprocessor and is a server-side language.
PHP is relatively new (compared to languages such as Perl (CGI) and Java) but is quickly becomming one of the most popular scripting languages on the internet.
It is a standard PHP function called phpinfo which will tell the server to print out a standard table of information giving you information on the setup of the server.
  More results at FactBites »


 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments
Please enter the 5-letter protection code

Want to know more?
Search encyclopedia, statistics and forums:
 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms.