ReflectionFunction::getClosure
(PHP 5 >= 5.4.0, PHP 7, PHP 8)
ReflectionFunction::getClosure — Returns a dynamically created closure for the function
参数
此函数没有参数。
返回值
Returns Closure.
Returns null in case of an error.
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User Contributed Notes 1 note
php dot net-bug at spamhereplease dot com ¶
8 years ago
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%
备份地址：http://www.lvesu.com/blog/php/reflectionfunction.getclosure.php