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<?php $first = Array(607,608,609,610); $second = Array(607,608,609,800); $Fcount = count($first); $arr = array_merge($first, $second); $arrc= array_diff($arr, array_diff_assoc($arr, array_unique($arr))); foreach ($arrc as $value){ echo key($value); if($arrc >= $Fcount){ echo "first array". $value; }else{ echo "second array" . $value; } }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: key(): Argument #1 ($array) must be of type array, int given in /in/qq71i:11 Stack trace: #0 /in/qq71i(11): key(610) #1 {main} thrown in /in/qq71i on line 11
Process exited with code 255.

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