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 = []; $iterator = new \RecursiveIteratorIterator( new \RecursiveArrayIterator($array) ); foreach ($iterator as $key => $row) { $result[$key] = $row; } //array_walk_recursive($array, function ($e) use (&$result) {$result[] = $e;}); var_dump($result);
based on RoOVf
Output for 5.4.0 - 7.2.0
array(2) { [0]=> string(5) "david" [1]=> string(7) "bartold" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ZqDLk 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/ZqDLk on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZqDLk on line 3
Process exited with code 255.