3v4l.org

run code in 300+ PHP versions simultaneously
<?php $v_4 = [ [1, 2, 3], [4, 5, 6], ]; $v_5 = [ [7, 8, 9], [10, 11, 12], ]; var_export( array_map( fn(...$row) => array_map( fn(...$col) => array_sum($col), ...$row ), $v_4, $v_5 ) );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.15, 8.5.0
array ( 0 => array ( 0 => 8, 1 => 10, 2 => 12, ), 1 => array ( 0 => 14, 1 => 16, 2 => 18, ), )
preferences:
127.88 ms | 407 KiB | 5 Q