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<?php $first_array = array(1,3,4,5,6); $second_array = array(5,2,1,7,9); $return = array(); foreach($first_array as $key => $value){ if($first_array[$key] > $second_array[$key]){ $return[] = $first_array[$key]; }else{ $return[] = $second_array[$key]; } } print_r($return);

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