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run code in 300+ PHP versions simultaneously
<?php namespace B { class C { public static function f() { var_dump(__CLASS__); } } C::f(); } namespace A\B { class C { public static function f() { var_dump(__CLASS__); } } C::f(); } namespace A { B\C::f(); \B\C::f(); //A\B\C::f(); \A\B\C::f(); $s = 'B\C::f'; call_user_func($s); $s = '\B\C::f'; call_user_func($s); $s = 'A\B\C::f'; call_user_func($s); $s = '\A\B\C::f'; call_user_func($s); }

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66.47 ms | 402 KiB | 5 Q