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<?php $arr = [['dt' => 1523728800], ['dt' => 1523739600], ['dt' => 1528739600]]; $daystart = strtotime(date("Y-m-d 00:00:00")); $dayend = strtotime(date("Y-m-d 23:59:59")); Foreach($arr as $val){ If($val['dt'] >= $daystart && $val['dt'] <= $dayend){ $res[] = $val; } } Var_dump($res);

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