- var_dump: documentation ( source)
- array_walk_recursive: documentation ( source)
<?php
$testArray = array(1, 'test' => array('a' => array('percy', 'mitch'),'b','c'));
$helper = array();
array_walk_recursive(
$testArray,
function ($item, $key) use (&$helper) {
if ($key === 'a') {
$helper[] = $item;
}
}
);
var_dump($helper);