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<?php function closure() { $a = 0; return function () use (&$a) { return $a++; }; } $c = closure(); var_dump($c()); var_dump($c()); var_dump($c()); var_dump($c()); var_dump($c()); var_dump(call_user_function(function () { return $c(); }));
Output for git.master, git.master_jit, rfc.property-hooks
int(0) int(1) int(2) int(3) int(4) Fatal error: Uncaught Error: Call to undefined function call_user_function() in /in/P0RUQ:17 Stack trace: #0 {main} thrown in /in/P0RUQ on line 17
Process exited with code 255.

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