3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'D' => array( 'C' => array('c', 'b', 'a'), 'B' => 'bvalue', 'A' => array('a', 'c', 'b'), ), 'C' => 'cvalue', 'B' => 'bvalue', 'A' => array( 'Z' => 'zvalue', 'A' => 'avalue', 'B' => 'bvalue', ) ); function recur_ksort(&$array) { foreach ($array as &$value) { if (is_array($value)) recur_ksort($value); } ksort($array); } recur_ksort($array); var_export($array);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array ( 'A' => array ( 'A' => 'avalue', 'B' => 'bvalue', 'Z' => 'zvalue', ), 'B' => 'bvalue', 'C' => 'cvalue', 'D' => array ( 'A' => array ( 0 => 'a', 1 => 'c', 2 => 'b', ), 'B' => 'bvalue', 'C' => array ( 0 => 'c', 1 => 'b', 2 => 'a', ), ), )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/Xede5 on line 19
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
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/Xede5 on line 19
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/Xede5 on line 19
Process exited with code 255.

preferences:
199.41 ms | 401 KiB | 470 Q