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<?php $arr = array('a', 'b', 'c', 'd', 'e', 'f'); $str = implode(array_walk(function(&$v,$k){if($k%3==0)$v.=';';}, array_reverse($arr))); echo $str;
Output for git.master, git.master_jit
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) could not be passed by reference in /in/0Ra0m:3 Stack trace: #0 {main} thrown in /in/0Ra0m on line 3
Process exited with code 255.
Output for rfc.property-hooks
Fatal error: Uncaught Error: array_walk(): Argument #1 ($array) cannot be passed by reference in /in/0Ra0m:3 Stack trace: #0 {main} thrown in /in/0Ra0m on line 3
Process exited with code 255.

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