Makecodesweet. PHP special usage summary (2) -- 'callback' callback in PHP this chapter summarizes some practical usage of 'callback' in PHP. 1. what is callback? & Nbsp; first, let's briefly introduce 'callback', commonly known as 'callback' and
Let's go around a little way to answer this question.Programming is divided into two categories: System programming (Systems programming) and application programming (application programming). The so-called system programming, simply speaking, is to
Make code sweet. Some summary of PHP special usage (2) The ' callback ' callback in--php
This chapter summarizes some of the practical uses of ' callback ' in PHP.
1. What is callback?
First, a brief introduction of ' callback ', commonly known as '
Definition on Wikipedia: In computer programming, a callback function, or callback, refers to a piece of executable code that passes through a function parameter to another code. This design allows the underlying code to invoke subroutines defined
Usage Summary edit How do you create a platform-independent data type that hides clumsy and incomprehensible syntax? use typedef to create synonymous words for existing types, define easy-to-remember type names
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Recently done a project to use the callback function, so study the next summary of my understanding of JavaScript callback first from the callback literal translation "callback" can understand that this is a function called mechanismWhen we meet a
In computer programming, a callback function , or a callback (Callback, which is called by call and back, is returned to the main function after the main function invocation), refers to a piece of executable code that passes through the function
I used to see the word "callback method (or callback function)", but I didn't know what it meant, and I didn't understand how to use it. Now from the network to collect some good information, and then tidy up, as their own notes, also as a learning
When doing Android development, often encounter the view of the event monitoring, although always used, but never think about its implementation principle. There are callback functions although often heard, but always feel dizzy, think of the head
Java callback function understanding and application
Callback: is called a method C in class B in Class A, and then in Class B, in turn, calls the method in Class A d,d this method is called the callback method, so that you are not a little
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