Delicious Bookmark this on Delicious Share on Facebook SlashdotSlashdot It! Digg! Digg



PHP : Function Reference : DOM Functions : DOMDocument->getElementsByTagName()

DOMDocument->getElementsByTagName()

Searches for all elements with given tag name ()

DOMDocument{
DOMNodeListgetElementsByTagName(stringname);
}

This function returns a new instance of class DOMNodeList containing the elements with a given tag name.

Parameters

name

The name of the tag to match on. The special value * matches all tags.

Return Values

A new DOMNodeList object containing all the matched elements.

Examples ( Source code ) DOMDocument->getElementsByTagName()

<?php
$xml 
=<<<EOT
<?xml version="1.0"?>
<config>
 <section id="section1">
  <param name="param1">value1</param>
  <param name="param2">value2</param>
 </section>
 <section id="section2">
  <param name="param3">value3</param>
 </section>
</config>
EOT;
$dom = new DomDocument;
$dom->preserveWhiteSpace FALSE;
$dom->loadXML($xml);
$params $dom->getElementsByTagName('param');
foreach (
$params as $param) {
      echo 
$param -> getAttribute('name').'
'
;
}
?>
Expected result:
--------------
param1
param2
param3 

Related Examples ( Source code ) » dom domdocument getelementsbytagname


Code Examples / Notes » dom domdocument getelementsbytagname

finding values of a node

I don't know if this is that obvious but it was not for me, so in addition to gem at rellim dot com's posting:
adding
<?php
echo $param -> nodeValue.'
';
?>
to the loop will output
value1
value2
value3


gem

Here is an example of getElementsByTagName():
<?php
$xml =<<<EOT
<?xml version="1.0"?>
<config>
 <section id="section1">
  <param name="param1">value1</param>
  <param name="param2">value2</param>
 </section>
 <section id="section2">
  <param name="param3">value3</param>
 </section>
</config>
EOT;
$dom = new DomDocument;
$dom->preserveWhiteSpace = FALSE;
$dom->loadXML($xml);
$params = $dom->getElementsByTagName('param');
foreach ($params as $param) {
      echo $param -> getAttribute('name').'
';
}
?>
Expected result:
--------------
param1
param2
param3


francois hill

Careful : getElementsByTagName will yield all elements with the given tag name under the present node, at any sub-level (i.e. among child nodes and all other descendant nodes)

Change Language


Follow Navioo On Twitter
DOMAttr->__construct()
DOMAttr->isId()
DOMCharacterData->appendData()
DOMCharacterData->deleteData()
DOMCharacterData->insertData()
DOMCharacterData->replaceData()
DOMCharacterData->substringData()
DOMComment->__construct()
DOMDocument->__construct()
DOMDocument->createAttribute()
DOMDocument->createAttributeNS()
DOMDocument->createCDATASection()
DOMDocument->createComment()
DOMDocument->createDocumentFragment()
DOMDocument->createElement()
DOMDocument->createElementNS()
DOMDocument->createEntityReference()
DOMDocument->createProcessingInstruction()
DOMDocument->createTextNode()
DOMDocument->getElementById()
DOMDocument->getElementsByTagName()
DOMDocument->getElementsByTagNameNS()
DOMDocument->importNode()
DOMDocument->load()
DOMDocument->loadHTML()
DOMDocument->loadHTMLFile()
DOMDocument->loadXML()
DOMDocument->normalizeDocument()
DOMDocument->registerNodeClass()
DOMDocument->relaxNGValidate()
DOMDocument->relaxNGValidateSource()
DOMDocument->save()
DOMDocument->saveHTML()
DOMDocument->saveHTMLFile()
DOMDocument->saveXML()
DOMDocument->schemaValidate()
DOMDocument->schemaValidateSource()
DOMDocument->validate()
DOMDocument->xinclude()
DOMDocumentFragment->appendXML()
DOMElement->__construct()
DOMElement->getAttribute()
DOMElement->getAttributeNode()
DOMElement->getAttributeNodeNS()
DOMElement->getAttributeNS()
DOMElement->getElementsByTagName()
DOMElement->getElementsByTagNameNS()
DOMElement->hasAttribute()
DOMElement->hasAttributeNS()
DOMElement->removeAttribute()
DOMElement->removeAttributeNode()
DOMElement->removeAttributeNS()
DOMElement->setAttribute()
DOMElement->setAttributeNode()
DOMElement->setAttributeNodeNS()
DOMElement->setAttributeNS()
DOMElement->setIdAttribute()
DOMElement->setIdAttributeNode()
DOMElement->setIdAttributeNS()
DOMEntityReference->__construct()
DOMImplementation->__construct()
DOMImplementation->createDocument()
DOMImplementation->createDocumentType()
DOMImplementation->hasFeature()
DOMNamedNodeMap->getNamedItem()
DOMNamedNodeMap->getNamedItemNS()
DOMNamedNodeMap->item()
DOMNode->appendChild()
DOMNode->cloneNode()
DOMNode->hasAttributes()
DOMNode->hasChildNodes()
DOMNode->insertBefore()
DOMNode->isDefaultNamespace()
DOMNode->isSameNode()
DOMNode->isSupported()
DOMNode->lookupNamespaceURI()
DOMNode->lookupPrefix()
DOMNode->normalize()
DOMNode->removeChild()
DOMNode->replaceChild()
DOMNodelist->item()
DOMProcessingInstruction->__construct()
DOMText->__construct()
DOMText->isWhitespaceInElementContent()
DOMText->splitText()
DOMXPath->__construct()
DOMXPath->evaluate()
DOMXPath->query()
DOMXPath->registerNamespace()
dom_import_simplexml
eXTReMe Tracker