3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'A1' => [1,0,0,0,0,0,0,0,0,0], 'A2' => [1,1,0,0,0,0,0,0,0,0], 'A3' => [0,0,0,0,0,0,0,0,0,0] ]; var_export(array_map('array_sum', array_map(null, ...array_values($array))));
Output for 5.6.40, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 0 => 2, 1 => 1, 2 => 0, 3 => 0, 4 => 0, 5 => 0, 6 => 0, 7 => 0, 8 => 0, 9 => 0, )
preferences:
139.99 ms | 407 KiB | 5 Q