3v4l.org

run code in 300+ PHP versions simultaneously
<?php function group($cond, $arr) { if (!$arr) return []; $e = array_shift($arr); $g = [$e]; while($cond($e, reset($arr))) { $g[] = array_shift($arr); } return array_merge([$g], group($cond, $arr)); } function it($m,$p){echo ($p?'OK':'NO')." It $m\n";}; echo it ('groups', group(it, [1,5,5,6,6,6,7,9]) == [[1],[5,5],[6,6,6],[7],[9]]);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant "it" in /in/r1bnL:22 Stack trace: #0 {main} thrown in /in/r1bnL on line 22
Process exited with code 255.

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