3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr1 = [1,2,3]; $arr2 = ["A","B","C"]; $arr = [["A"=>$arr1, "B"=>$arr2],["B"=>$arr1, "C"=>$arr2]]; $callback = function($v1, $v2){ return $v1."-".$v2; }; reset($arr[0]); reset($arr[1]); $res = []; while (current($arr[0]) !== false){ $key = key($arr[0])."-".key($arr[1]); $value = array_map($callback, current($arr[0]), current($arr[1])); $res[$key] = $value; next($arr[0]); next($arr[1]); } print_r($res);
based on oXEQH
Output for 5.4.0 - 7.3.1
Array ( [A-B] => Array ( [0] => 1-1 [1] => 2-2 [2] => 3-3 ) [B-C] => Array ( [0] => A-A [1] => B-B [2] => C-C ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/b8hqo on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/b8hqo on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/b8hqo on line 3
Process exited with code 255.