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<?php $clashes = [ [ "s1_id" => 26, "s2_id" => 27 ], [ "s1_id" => 26, "s2_id" => 27 ] ]; array_walk($clashes, function (&$item, $key) use ($item) { if (in_array($item, $item, true)) { unset($item); } }, array()); var_dump($clashes);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Cannot use lexical variable $item as a parameter name in /in/pEb2p on line 14
Process exited with code 255.

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