3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; foreach ($array as $key => $arr) { foreach ($arr as $k => $v) { $result[$k] = $v; } } var_dump($result);
based on NQL45
Output for 5.4.0 - 7.2.0
array(2) { [1]=> array(1) { [0]=> string(5) "carol" } [2]=> array(1) { [0]=> string(5) "david" } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/38rS3 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/38rS3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/38rS3 on line 3
Process exited with code 255.