DOMElement::getElementsByTagName

(PHP 5, PHP 7)

DOMElement::getElementsByTagName — Gets elements by tagname

설명

public DOMNodeList DOMElement::getElementsByTagName ( string $name )

This function returns a new instance of the class DOMNodeList of all descendant elements with a given tag name, in the order in which they are encountered in a preorder traversal of this element tree.

인수

name: The tag name. Use * to return all elements within the element tree.

반환값

This function returns a new instance of the class DOMNodeList of all matched elements.

참고

DOMElement::getElementsByTagNameNS() - Get elements by namespaceURI and localName

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User Contributed Notes 3 notes

down

rudiger at greatdealsenterprises dot com ¶

5 years ago


Note that even though getElementsByTagName returns a NodeList which is defined as a list of DOMNodes, you're actually getting a list of DOMElements. That allows to call getElementsByTagName on each of the results.

$tables = $doc->getElementsByTagName('table');
foreach ($tables as $table) {
  $trs = $table->getElementsByTagName('tr');
  // etc...
}

down

Brennon Brimhall ¶

7 years ago


Be aware that this function returns all descendants, not just immediate children.

down

-56

ddkkdd twenty twenty at gmail dot com ¶

14 years ago


A simple function that uses this method to print the nodes it finds in an xml document. Improvements welcomed.



<?php

function printTags($tag){



  $node = $this->doc->getElementsByTagName($tag);           

   for($c = 0; $c<$node->length; $c++){

     $text[$c] =$this->doc->saveXML($node->item($c));

     echo $text[$c];



   }



  

}

?>

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