DomNode->parent_node

说明

This function returns the parent node.

(PHP >= 4.3 only) If no parent is found, NULL is returned.

The following example will show two identical lists of children.

例子 1. Finding the document of a node <?php $doc = domxml_new_doc("1.0"); $node = $doc->create_element("para"); $node = $doc->append_child($node); $children = $doc->children(); print_r($children); $doc2 = $node->parent_node(); $children = $doc2->children(); print_r($children); ?>