ReflectionFunction::getClosure

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

ReflectionFunction::getClosure — Returns a dynamically created closure for the function

说明

public ReflectionFunction::getClosure ( ) : Closure

Warning

本函数还未编写文档，仅有参数列表。

参数

此函数没有参数。

返回值

Returns Closure. Returns null in case of an error.

User Contributed Notes

php dot net-bug at spamhereplease dot com 23-Nov-2013 05:34


If you have a callback that is going to be invoked often, you can use this method (and the related method for ReflectProperty) to get a closure that will execute at near native speed.



Some benchmark comparisons with php 5.4.22 on ubuntu:



[function call]      [time]     [%slower]

function():          0.09527      0%

Reflection::Closure: 0.09729      2%

$string():           0.102641     8%

Reflection:          0.197122   107%

call_user_func:      0.214045   125%



[method call]        [time]  [% slower] [%vs func]

->method():          0.103611    0%       9%

Reflection::Closure: 0.1043      1%       9%

$string():           0.109885    6%      15%

Reflection:          0.20451    97%     115%

call_user_func:      0.219205  112%     130%