PHP Manual: DOMElement::prepend

Description

public function DOMElement::prepend(DOMNode|string ...$nodes): void

Prepends one or many nodes to the list of children before the first child node.

Parameters

nodes: The nodes to prepend. Strings are automatically converted to text nodes.

Return Values

No value is returned.

Errors/Exceptions

DOM_HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of one of the passed nodes, or if the node to put in is one of this node's ancestors or this node itself.
DOM_WRONG_DOCUMENT_ERR: Raised if one of the passed nodes was created from a different document than the one that created this node.

Changelog

Version	Description
8.3.0	Calling this method on a node without an owner document now works. Previously this threw a DOMException with code `DOM_HIERARCHY_REQUEST_ERR`.

Examples

Example #1 DOMElement::prepend() example

Prepends nodes in the container element.

<?php
$doc = new DOMDocument;
$doc->loadXML("<container> world</container>");
$world = $doc->documentElement;

$world->prepend($doc->createElement("hello"), "beautiful");

echo $doc->saveXML();
?>

The above example will output:

<?xml version="1.0"?>
<container><hello/>beautiful world</container>