php-doc-en/reference/spl/directoryiterator/key.xml
2014-09-05 07:44:07 +00:00

96 lines
2.3 KiB
XML

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="directoryiterator.key" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>DirectoryIterator::key</refname>
<refpurpose>Return the key for the current DirectoryIterator item</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>string</type> <methodname>DirectoryIterator::key</methodname>
<void/>
</methodsynopsis>
<para>
Get the key for the current <classname>DirectoryIterator</classname> item.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The key for the current <classname>DirectoryIterator</classname> item.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>A <methodname>DirectoryIterator::key</methodname> example</title>
<programlisting role="php">
<![CDATA[
<?php
$dir = new DirectoryIterator(dirname(__FILE__));
foreach ($dir as $fileinfo) {
if (!$fileinfo->isDot()) {
echo $fileinfo->key() . " => " . $fileinfo->getFilename() . "\n";
}
}
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
0 => apple.jpg
1 => banana.jpg
2 => index.php
3 => pear.jpg
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><methodname>DirectoryIterator::current</methodname></member>
<member><methodname>DirectoryIterator::next</methodname></member>
<member><methodname>DirectoryIterator::rewind</methodname></member>
<member><methodname>DirectoryIterator::valid</methodname></member>
<member><methodname>Iterator::key</methodname></member>
</simplelist>
</para>
</refsect1>
</refentry>
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