Osx-how to customize PHP built-in functions

I recently installed a liip version of PHP, and I feel that many functions are more interesting than native ones. Can I customize some built-in functions. If yes, can I post a method? Thank you very much. I recently installed a liip version of PHP, and I feel that many functions are more interesting than native ones. Can I customize some built-in functions. If yes, can I post a method? Thank you very much.

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I recently installed a liip version of PHP, and I feel that many functions are more interesting than native ones. Can I customize some built-in functions. If yes, can I post a method? Thank you very much.

The answer above is a little more difficult (C is required)

In fact, there is a pure PHP Solution for PHP programmers.
In php. ini, there is a configuration item auto_prepend_file. You can set a php file as the file automatically loaded before each execution.

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

Write a PHP extension here

Any built-in function requires some underlying extensions of the C Language

@ Chenhengqi the answer is to write the PHP 7 extension. For more information about the extension development before php7, see here.
PHP extension development and getting started

Override_function

Http://php.net/manual/zh/function.override-function.php

Extensions need to be installed