Callback (telecommunications), the telecommunications event that occurs when the originator of a call is immediately called back in a second call as a response
Callback (comedy), a joke which refers to one previously told in a set of jokes including both
Web Callback, a technology that provides telephone callback for websites.
In theater, film, or other performing arts, a follow-up after an Audition, in which directors can further audition candidates for a position or part.
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Callback functions can not only be simple functions but also object methods including static class methods.
Apart from common user-defined function, create_function() can be used to create an anonymous callback function.
Parent methods for callbacks should be called 'parent::method', so if you wish to call a non-static parent method via a callback, you should use a callback of
ASRS' award-winning publication CALLBACK is presently mailed via "snail mail" to more than 90,000 subscribers and is read by more than 150,000 aviation professionals and enthusiasts.
The associated printing and postage costs are close to a quarter of a million dollars per year.
CALLBACK is available in both HTML and Adobe Acrobat Reader formats.
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