How to define built-in functions in php

藏色散人
Release: 2023-02-25 20:40:01
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How to define built-in functions in php

How to define built-in functions in PHP?

The so-called PHP built-in functions are defined in the library of the PHP program Functions, such as echo, mysql_connect, include_once, etc., are just like the system functions in VC, such as cout, etc.

In fact, for PHP programmers, there is a pure PHP solution. There is a configuration item auto_prepend_file in php.ini, which can set a PHP file as a file that is automatically loaded before each execution.

Write a function in this file and you can use it as a customized built-in function.

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