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 $row) { $result[] = $row; } var_dump($result);
based on irYYS
Output for 5.4.0 - 7.3.1
array(6) { [0]=> string(4) "anna" [1]=> string(5) "alice" [2]=> string(3) "bob" [3]=> string(7) "bartold" [4]=> string(5) "carol" [5]=> string(5) "david" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/NQL45 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/NQL45 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NQL45 on line 3
Process exited with code 255.