3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myArray = array( "a", array( "a", "b", array( "a", "b", "c", array( "a", "b", "c", "d", array("the end") ) ) ) ); function manipulate(&$val) { $val .= " appended"; } array_walk_recursive($myArray, 'manipulate', $myArray); var_dump($myArray);
Output for 5.0.0 - 5.0.5, 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 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 - 8.2.18, 8.3.0 - 8.3.6
array(2) { [0]=> string(10) "a appended" [1]=> array(3) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> array(4) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> string(10) "c appended" [3]=> array(5) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> string(10) "c appended" [3]=> string(10) "d appended" [4]=> array(1) { [0]=> string(16) "the end appended" } } } } }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
array(2) { [0]=> string(10) "a appended" [1]=> &array(3) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> &array(4) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> string(10) "c appended" [3]=> &array(5) { [0]=> string(10) "a appended" [1]=> string(10) "b appended" [2]=> string(10) "c appended" [3]=> string(10) "d appended" [4]=> &array(1) { [0]=> string(16) "the end appended" } } } } }
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_walk_recursive() in /in/uk5kv on line 28
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_walk_recursive() in /in/uk5kv on line 28
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_walk_recursive() in /in/uk5kv on line 28

preferences:
237.69 ms | 401 KiB | 342 Q