3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = [[1, 2, 3], [1, 2, 3]]; $arr2 = [[4, 5, 6], [7, 8, 9]]; var_export( array_map('array_combine', $arr1, $arr2) );
Output for 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 => array ( 1 => 4, 2 => 5, 3 => 6, ), 1 => array ( 1 => 7, 2 => 8, 3 => 9, ), )

preferences:
157.4 ms | 407 KiB | 5 Q