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<?php echo check(array()); function check(&$ok = array()) { return $ok; } ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: check(): Argument #1 ($ok) cannot be passed by reference in /in/Qt4Fk:3 Stack trace: #0 {main} thrown in /in/Qt4Fk on line 3
Process exited with code 255.

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