Manual de PHP
Anterior		Siguiente

DOMDocument->getElementById()

(no version information, might be only in CVS)

DOMDocument->getElementById() -- Searches for an element with a certain id

Descripción

class DOMDocument {

DOMElement getElementById ( string elementId )

}

This function is similar to DOMDocument->getElementsByTagName() but searches for an element with a given id.

According to the DOM standard this requires a DTD which defines the attribute ID to be of type ID. You need to validate your document with DOMDocument->validate() or DOMDocument->validateOnParse before using this function.

Lista de parámetros

elementId: The unique id value for an element.

Valores retornados

Returns the DOMElement or NULL if the element is not found.

Ejemplos

Ejemplo 1. DOMDocument->getElementById() Example


<?php

$doc = new DomDocument;

// We need to validate our document before refering to the id
$doc->validateOnParse = true;
$doc->Load('book.xml');

echo "The element whose id is books is: " . $doc->getElementById('books')->tagName . "\n";

?>

El resultado del ejemplo seria:

The element whose id is books is: chapter

Ver también

DOMDocument->getElementsByTagName()

Anterior	Inicio	Siguiente
DOMDocument->createTextNode()	Subir	DOMDocument->getElementsByTagName()

Hosting by: hurra.com
Generated: 2007-01-26 18:00:40