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<?php $months = array('jan', 'feb', 'mar', 'apr'); array_push($months,'may'); $output = array_filter($contents, function($item){ return strlen($item) == 3; }); print_r($output);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $contents in /in/r44QS on line 4 Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /in/r44QS:4 Stack trace: #0 /in/r44QS(4): array_filter(NULL, Object(Closure)) #1 {main} thrown in /in/r44QS on line 4
Process exited with code 255.

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