DomElement::get_elements_by_tagname

(PHP 4 >= 4.1.0)

DomElement::get_elements_by_tagname — Gets elements by tagname

说明

array DomElement::get_elements_by_tagname ( string $name )

Gets all the sub elements with the specific name within the current element.

参数

name: The name of the seeked element.

返回值

Returns an array of DomElement objects.

范例

Example #1 Getting a content


<?php
if (!$dom = domxml_open_mem($xmlstr)) {
  echo "Error while parsing the document\n";
  exit;
}

$root = $dom->document_element();

$node_array = $root->get_elements_by_tagname('element');

foreach ($node_array as $node) {
    echo ' - ' . $node->get_content() . "\n";
}

?>

Migrating to PHP 5

Use DOMElement::getElementsByTagName.

PHP手册 - N: Gets elements by tagname

用户评论:

mikhail dot nemtsev at gmail dot com (24-Aug-2008 04:21)

This example uses get_elements_by_tagname() and child_nodes() to output the contents of the xml file. The sample xml file and php code are below. <?xml version="1.0" encoding="iso-8859-1"?> <dictionary> <entry> <word>Hello</word> <meaning>used to express a greeting</meaning> <example>Hello World!</example> </entry> </dictionary> <?php $xml_path = "/some/dir/dictionary.xml"; if (!$dom = domxml_open_file($xml_path)) { //the above requires absolube path exit("Could not access the XML source."); } $root = $dom->document_element(); //obtain the root $array_entry = $root->get_elements_by_tagname("entry"); //gets all <entry> DomElems foreach ($array_entry as $entry_dom_elem) { $childnodes = $entry_dom_elem->child_nodes(); foreach ($childnodes as $child) { //cycle thru <word>, <meaning>, <example> echo "node name: ".$child->tagname() . "; contains: " . $child->get_content()."<br>"; } } ?> The above code outputs: node name: word; contains: Hello node name: meaning; contains: used to express a greeting node name: example; contains: Hello World!

php dot net dot 3 dot jdoe at spamgourmet dot com (30-Mar-2004 06:55)

Function get_elements_by_tagname() is only defined for the DocumentRoot-Element rather than for any DocumentElement.

chregu at php dot net (30-Oct-2002 03:02)

if you want to search for tagnames with namespaces, do it the following way: (it's a work around, not a really proper solution..) $dom = domxml_open_mem($xmlval); $ctx=xpath_new_context($dom); $ctx->xpath_register_ns("yns","http://your.name.space/uri"); $nodes = $dom->get_elements_by_tagname("yns:tagname",$ctx);