--TEST-- Bug #34982 (array_walk_recursive() modifies elements outside function scope) --FILE-- <?php $ar = array( 'element 1', array('subelement1') ); func($ar); print_r($ar); function func($a) { array_walk_recursive($a, 'apply'); print_r($a); } function apply(&$input, $key) { $input = 'changed'; } ?> --EXPECT-- Array ( [0] => changed [1] => Array ( [0] => changed ) ) Array ( [0] => element 1 [1] => Array ( [0] => subelement1 ) )