(PECL apd >= 0.2)
rename_function — Renames orig_name to new_name in the global function table
Renames a orig_name to new_name in the global function table. Useful for temporarily overriding built-in functions.
The original function name.
The new name for the original_name function.
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 rename_function() example
<?php
rename_function('mysql_connect', 'debug_mysql_connect' );
?>