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run code in 300+ PHP versions simultaneously
<?php $array = [ [ 'name' => 'a', 'url' => 'b', ], [ 'no-name' => 'foo', ], [ 'name' => 'c', 'url' => 'd', 'children' => [ [ 'name' => 'e', 'url' => 'f' ] ] ] ]; function recurseAll(&$node) { if (is_array($node)) { if (isset($node['name'])) { // do something with the qualifying array... $node[] = 'push a new element into array level'; } foreach ($node as &$childNode) { recurseAll($childNode); } } } recurseAll($array); var_export($array);
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array ( 0 => array ( 'name' => 'a', 'url' => 'b', 0 => 'push a new element into array level', ), 1 => array ( 'no-name' => 'foo', ), 2 => array ( 'name' => 'c', 'url' => 'd', 'children' => array ( 0 => array ( 'name' => 'e', 'url' => 'f', 0 => 'push a new element into array level', ), ), 0 => 'push a new element into array level', ), )
preferences:
150.55 ms | 408 KiB | 5 Q