mirror of
https://github.com/sigmasternchen/php-doc-en
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84649cab8c
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@175694 c90b9560-bf6c-de11-be94-00142212c4b1
135 lines
2.8 KiB
XML
135 lines
2.8 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<refentry id='function.dom-domnodelist-item'>
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<refnamediv>
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<refname>DOMNodelist->item()</refname>
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<refpurpose>
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Retrieves a node specified by index
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</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<classsynopsis>
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<ooclass><classname>DOMNodeList</classname></ooclass>
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<methodsynopsis>
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<type>DOMNode</type>
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<methodname>item</methodname>
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<methodparam><type>int</type><parameter>index</parameter></methodparam>
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</methodsynopsis>
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</classsynopsis>
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<para>
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Retrieves a node specified by <parameter>index</parameter> within the
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<classname>DOMNodeList</classname> object.
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</para>
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<tip>
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<para>
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If you need to know the number of nodes in the collection, use
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the <literal>length</literal> property of the
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<classname>DOMNodeList</classname> object.
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</para>
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</tip>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>index</parameter></term>
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<listitem>
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<para>
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Index of the node into the collection.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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The node at the <parameter>index</parameter>th position in the
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<classname>DOMNodeList</classname>, or &null; if that is not a valid
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index.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Traversing all the entries of the table</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$doc = new DOMDocument;
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$doc->load('book.xml');
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$items = $doc->getElementsByTagName('entry');
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for ($i = 0; $i < $items->length; $i++) {
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echo $items->item($i)->nodeValue . "\n";
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}
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?>
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]]>
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</programlisting>
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<para>
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Alternatively, you can use foreach, which is a much more convenient way:
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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foreach ($items as $item) {
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echo $item->nodeValue . "\n";
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}
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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Title
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Author
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Language
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ISBN
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The Grapes of Wrath
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John Steinbeck
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en
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0140186409
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The Pearl
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John Steinbeck
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en
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014017737X
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Samarcande
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Amine Maalouf
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fr
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2253051209
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]]>
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</screen>
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</example>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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