3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo() {} function bar() {} function proxy($c) { spl_autoload_call($c); } spl_autoload_register(foo(...)); spl_autoload_register(bar(...)); var_dump(spl_autoload_functions()); var_dump(spl_autoload_unregister(proxy(...))); var_dump(spl_autoload_functions()); var_dump(spl_autoload_unregister(spl_autoload_call(...))); var_dump(spl_autoload_functions());
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array(2) { [0]=> object(Closure)#1 (1) { ["function"]=> string(3) "foo" } [1]=> object(Closure)#2 (1) { ["function"]=> string(3) "bar" } } bool(false) array(2) { [0]=> object(Closure)#1 (1) { ["function"]=> string(3) "foo" } [1]=> object(Closure)#2 (1) { ["function"]=> string(3) "bar" } } bool(true) array(0) { }
preferences:
58.18 ms | 407 KiB | 5 Q