3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['0' => 1, '1' => 2, '2' => 3]; $b = ['0' => 4, '1' => 5, '2' => 6]; $result = []; foreach ($a as $k => $v) { $result[] = ['a' => $v, 'b' => $b[$k]]; } var_export($result);
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 - 8.3.25, 8.4.1 - 8.4.12
array ( 0 => array ( 'a' => 1, 'b' => 4, ), 1 => array ( 'a' => 2, 'b' => 5, ), 2 => array ( 'a' => 3, 'b' => 6, ), )
preferences:
104.78 ms | 407 KiB | 5 Q