PHP Manual
Uopz 函数
Sets hook to execute when entering a function or method

uopz_set_hook

(PECL uopz 5, PECL uopz 6)

uopz_set_hook — Sets hook to execute when entering a function or method

说明

uopz_set_hook ( string $function , Closure $hook ) : bool

uopz_set_hook ( string $class , string $function , Closure $hook ) : bool

Sets a hook to execute when entering a function or method.

参数

class: The name of the class.
function: The name of the function or method.
hook: A closure to execute when entering the function or method.

返回值

成功时返回 TRUE，或者在失败时返回 FALSE。

范例

Example #1 Basic uopz_set_hook() Usage

 <?php
function foo() {
    echo 'foo';
}
uopz_set_hook('foo', function () {echo 'bar';});
foo();
?>

以上例程会输出：

barfoo

参见

uopz_get_hook() - Gets previously set hook on function or method
uopz_unset_hook() - Removes previously set hook on function or method

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