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<?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 $m\n";} function eq($a,$b) {return $a==$b;} echo it ('groups', group($eq, [1,5,5,6,6,6,7,9]) == [[1],[5,5],[6,6,6],[7],[9]]); print_r(group($eq, [1,2,3,3,3,4,6]));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $eq in /in/hv2VQ on line 22 Fatal error: Uncaught Error: Value of type null is not callable in /in/hv2VQ:10 Stack trace: #0 /in/hv2VQ(22): group(NULL, Array) #1 {main} thrown in /in/hv2VQ on line 10
Process exited with code 255.

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