# DOMDocument::prepend

(PHP 8)

DOMDocument::prepend — Prepends nodes before the first child node

### Descripción

public DOMDocument::prepend(DOMNode|string `...$nodes`): void

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

### Parámetros

`nodes`

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

### Valores devueltos

No devuelve ningún valor.

### Errores/Excepciones

`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.

### Historial de cambios

Versión | Descripción
--- | ---
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`.

### Ejemplos

Ejemplo #1 DOMDocument::prepend() example

Adds nodes before the document root.

`<?php
$doc = new DOMDocument;
$doc->loadXML("<world/>");
$doc->prepend($doc->createElement("hello"), "beautiful");
echo $doc->saveXML();
?>`

El resultado del ejemplo sería:

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

### Ver también

- DOMParentNode::prepend() - Prepends nodes before the first child node
- DOMDocument::append() - Appends nodes after the last child node