PHP Manual
APD 函数
Overrides built-in functions

override_function

(PECL apd >= 0.2)

override_function — Overrides built-in functions

说明

override_function ( string $function_name , string $function_args , string $function_code ) : bool

Overrides built-in functions by replacing them in the symbol table.

参数

function_name

The function to override.

function_args

The function arguments, as a comma separated string.

Usually you will want to pass this parameter, as well as the function_code parameter, as a single quote delimited string. The reason for using single quoted strings, is to protect the variable names from parsing, otherwise, if you use double quotes there will be a need to escape the variable names, e.g. \$your_var.

function_code

The new code for the function.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

范例

Example #1 override_function() example

 <?php
override_function('test', '$a,$b', 'echo "DOING TEST"; return $a * $b;');
?>

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