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<?php $arr = [["id" => 100, "data" => "21-11-2013"]]; $arr = [["id" => 100, "data" => "21AAA111"]]; foreach($arr as $k => &$e) { $val = strtotime($e["data"]) ? strtotime($e["data"]) : strtotime(str_replace("/", "-", $e["data"])); $e["data"] = date("m/d/y", $val); if (!$val) unset($arr[$k]); } print_r($arr);

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