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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 git.master, git.master_jit, rfc.property-hooks
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" } } } } }

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