php-doc-en/reference/dom/domdocument/createelementns.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="domdocument.createelementns" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>DOMDocument::createElementNS</refname>
  <refpurpose>
   Create new element node with an associated namespace
  </refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>DOMElement</type><methodname>DOMDocument::createElementNS</methodname>
   <methodparam><type>string</type><parameter>namespaceURI</parameter></methodparam>
   <methodparam><type>string</type><parameter>qualifiedName</parameter></methodparam>
   <methodparam choice="opt"><type>string</type><parameter>value</parameter></methodparam>
  </methodsynopsis>
  <para>
   This function creates a new element node with an associated namespace.
   &dom.node.inserted;
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>namespaceURI</parameter></term>
     <listitem>
      <para>
       The URI of the namespace.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>qualifiedName</parameter></term>
     <listitem>
      <para>
       The qualified name of the element, as <literal>prefix:tagname</literal>.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>value</parameter></term>
     <listitem>
      <para>
       The value of the element. By default, an empty element will be created.
       You can also set the value later with <link
       linkend="domnode.props.nodevalue">DOMElement::$nodeValue</link>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The new <classname>DOMElement</classname> or &false; if an error occured.
  </para>
 </refsect1>
 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   <variablelist>
    <varlistentry>
     <term><constant>DOM_INVALID_CHARACTER_ERR</constant></term>
     <listitem>
      <para>
       Raised if <parameter>qualifiedName</parameter> contains an invalid character.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><constant>DOM_NAMESPACE_ERR</constant></term>
     <listitem>
      <para>
       Raised if <parameter>qualifiedName</parameter> is a maformed qualified
       name.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Creating a new element and inserting it as root</title>
    <programlisting role="php">
<![CDATA[
<?php

$dom = new DOMDocument('1.0', 'utf-8');

$element = $dom->createElementNS('http://www.example.com/XFoo', 'xfoo:test', 'This is the root element!');

// We insert the new element as root (child of the document)
$dom->appendChild($element);

echo $dom->saveXML();
?>
]]>
    </programlisting>
    &example.outputs;
    <screen role="xml">
<![CDATA[
<?xml version="1.0" encoding="utf-8"?>
<xfoo:test xmlns:xfoo="http://www.example.com/XFoo">This is the root element!</xfoo:test>
]]>
    </screen>
   </example>
   <example>
    <title>A namespace prefix example</title>
    <programlisting role="php">
<![CDATA[
<?php
$doc  = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = $doc->createElementNS('http://www.w3.org/2005/Atom', 'element');
$doc->appendChild($root);
$root->setAttributeNS('http://www.w3.org/2000/xmlns/' ,'xmlns:g', 'http://base.google.com/ns/1.0');
$item = $doc->createElementNS('http://base.google.com/ns/1.0', 'g:item_type', 'house');
$root->appendChild($item);

echo $doc->saveXML(), "\n";

echo $item->namespaceURI, "\n"; // Outputs: http://base.google.com/ns/1.0
echo $item->prefix, "\n";       // Outputs: g
echo $item->localName, "\n";    // Outputs: item_type
?>
]]>
    </programlisting>
    &example.outputs;
    <screen role="xml">
<![CDATA[
<?xml version="1.0" encoding="utf-8"?>
<element xmlns="http://www.w3.org/2005/Atom" xmlns:g="http://base.google.com/ns/1.0">
  <g:item_type>house</g:item_type>
</element>

http://base.google.com/ns/1.0
g
item_type
]]>
    </screen>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><methodname>DOMNode::appendChild</methodname></member>
    <member><methodname>DOMDocument::createAttribute</methodname></member>
    <member><methodname>DOMDocument::createAttributeNS</methodname></member>
    <member><methodname>DOMDocument::createCDATASection</methodname></member>
    <member><methodname>DOMDocument::createComment</methodname></member>
    <member><methodname>DOMDocument::createDocumentFragment</methodname></member>
    <member><methodname>DOMDocument::createElement</methodname></member>
    <member><methodname>DOMDocument::createEntityReference</methodname></member>
    <member><methodname>DOMDocument::createProcessingInstruction</methodname></member>
    <member><methodname>DOMDocument::createTextNode</methodname></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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