3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array('A', 'B', 'C'); $array2 = array('1', '2', '3','4','5', '6', '7','8'); $result = array(); foreach($array1 as $val) { foreach($array2 as $co) { $result[] = $val."".$co; } } print_r($result);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => A1 [1] => A2 [2] => A3 [3] => A4 [4] => A5 [5] => A6 [6] => A7 [7] => A8 [8] => B1 [9] => B2 [10] => B3 [11] => B4 [12] => B5 [13] => B6 [14] => B7 [15] => B8 [16] => C1 [17] => C2 [18] => C3 [19] => C4 [20] => C5 [21] => C6 [22] => C7 [23] => C8 )
preferences:
273.65 ms | 406 KiB | 343 Q