数组索引XML文件的递归方法

Trying to Recursively Index XML

Been altering listed code but no dice.

public function hasChildren($node) {
    if (sizeof($node) != 0) {
        foreach ($node as $value) {
            $value = $this->nodeToIndexedArray($value);
            return $this->hasChildren($value);
        }
    } else {
        return $node;
    }
}