3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = [8,11,5,6,7]; $array2 = [1,2,3]; $arrays = [$array1, $array2]; function array_cartesian($arrays) { if(count($arrays) == 0) { return array(array()); } $a = array_shift($arrays); $c = array_cartesian($arrays); $r = []; foreach($a as $v) { foreach($c as $p) { $r[] = array_merge(array($v), $p); } } return $r; } print_r(array_cartesian($arrays));
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 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] => Array ( [0] => 8 [1] => 1 ) [1] => Array ( [0] => 8 [1] => 2 ) [2] => Array ( [0] => 8 [1] => 3 ) [3] => Array ( [0] => 11 [1] => 1 ) [4] => Array ( [0] => 11 [1] => 2 ) [5] => Array ( [0] => 11 [1] => 3 ) [6] => Array ( [0] => 5 [1] => 1 ) [7] => Array ( [0] => 5 [1] => 2 ) [8] => Array ( [0] => 5 [1] => 3 ) [9] => Array ( [0] => 6 [1] => 1 ) [10] => Array ( [0] => 6 [1] => 2 ) [11] => Array ( [0] => 6 [1] => 3 ) [12] => Array ( [0] => 7 [1] => 1 ) [13] => Array ( [0] => 7 [1] => 2 ) [14] => Array ( [0] => 7 [1] => 3 ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/neDTH on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/neDTH on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/neDTH on line 3
Process exited with code 255.

preferences:
276.29 ms | 401 KiB | 342 Q