PHPize Online / SQLize Online  /  SQLtest Online

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<?php $m = [1 => 20, 30 => 40, 98 => 99]; $m1 = [1 => 5, 37 => 42, 70 => 79, 80 => 99]; $keys = array_keys($m); $keys1 = array_keys($m1); $values = array_values($m); $values1 = array_values($m1); $n = count($keys); $n1 = count($keys1); for($i=0; $i<max($n, $n1); $i++){ $res[min($keys[$i], $keys1[$i])] = max($values[$i], $values1[$i]); } print_r ($res);
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