[edit] Last updated: Fri, 25 May 2012

DomDocument::document_element

(PHP 4 >= 4.1.0)

DomDocument::document_element — Devuelve la raíz de nodo de elemento

Descripción

domelement DomDocument::document_element ( void )

Esta función devuelve el nodo de elemento raíz de un documento.

El ejemplo siguiente devuelve sólo el elemento con el nombre de CAPÍTULO y lo imprime. El otro nodo - el comentario - no se devuelve.

Ejemplo #1 Recuperar elemento raíz


<?php
include("example.inc");

if (!$dom = domxml_open_mem($xmlstr)) {
  echo "Error al analizar el documento\n";
  exit;
}

$root = $dom->document_element();
print_r($root);
?>

El resultado del ejemplo sería:

domelement Object
(
    [type] => 1
    [tagname] => capítulo
    [0] => 6
    [1] => 137960648
)

DomDocument::dump_file

DomDocument::doctype

[edit] Last updated: Fri, 25 May 2012

add a note User Contributed Notes DomDocument::document_element

jaworskidaniel no at spam gmail dot com 13-Jul-2008 11:19


in php5



            $root = $dom->documentElement;

            $tag = $root->tagName;

misterffoeg at hotmail dot com 10-Dec-2007 08:03


The last note is incorrect. The class he is referring to is DOMDocument, not DomDocument. This page is for the PHP 4 extension. Doing "new DomDocument" would be a fatal error in PHP 5 unless you hacked the old extension into it which would be a very useless move.

rianfowler no at spam gmail dot com 01-Apr-2007 11:51


The domelement returned by this will function as a domnode object for things like ->append_child.



$nodeChild = myxmldoc->create_element('child');

$nodeRoot = $this->myxmldoc->document_element();

$nodeRoot->append_child($nodeChild);

filipp at mac dot com 29-Dec-2006 07:29


as of PHP 5 (tested with 5.1.4), remember to use documentElement instead. As in:

$dom = new DomDocument ();

$dom -> load ('file.xml');

$newEl = $dom -> createElement ('newEl');

$dom -> documentElement -> appendChild ($newEl);

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