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run code in 150+ php & hhvm versions
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<?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 - 7.1.0
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 - 5.2.5
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 - 4.4.4
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