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<?php $test = array(1,9,3,5,1,5,3); usort(function($a, $b){ return $a - $b; }, $test); ?>
Output for git.master, git.master_jit
Fatal error: Uncaught Error: usort(): Argument #1 ($array) could not be passed by reference in /in/AF5d1:5 Stack trace: #0 {main} thrown in /in/AF5d1 on line 5
Process exited with code 255.
Output for rfc.property-hooks
Fatal error: Uncaught Error: usort(): Argument #1 ($array) cannot be passed by reference in /in/AF5d1:5 Stack trace: #0 {main} thrown in /in/AF5d1 on line 5
Process exited with code 255.

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