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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 328297 $ -->
<refentry xml:id="appenditerator.key" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>AppendIterator::key</refname>
<refpurpose>Gets the current key</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>scalar</type><methodname>AppendIterator::key</methodname>
<void />
</methodsynopsis>
<para>
Get the current key.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The current key if it is valid or &null; otherwise.
</para>
</refsect1>
<refsect1 role="examples"><!-- {{{ -->
&reftitle.examples;
<para>
<example xml:id="appenditerator.key.examples.basic"><!-- {{{ -->
<title><methodname>AppendIterator::key</methodname> basic example</title>
<programlisting role="php">
<![CDATA[
<?php
$array_a = new ArrayIterator(array('a' => 'aardwolf', 'b' => 'bear', 'c' => 'capybara'));
$array_b = new ArrayIterator(array('apple', 'orange', 'lemon'));
$iterator = new AppendIterator;
$iterator->append($array_a);
$iterator->append($array_b);
// Manual iteration
$iterator->rewind();
while ($iterator->valid()) {
echo $iterator->key() . ' ' . $iterator->current() . PHP_EOL;
$iterator->next();
}
echo PHP_EOL;
// With foreach
foreach ($iterator as $key => $current) {
echo $key . ' ' . $current . PHP_EOL;
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
a aardwolf
b bear
c capybara
0 apple
1 orange
2 lemon
a aardwolf
b bear
c capybara
0 apple
1 orange
2 lemon
]]>
</screen>
</example><!-- }}} -->
</para>
</refsect1><!-- }}} -->
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><methodname>Iterator::key</methodname></member>
<member><methodname>AppendIterator::current</methodname></member>
<member><methodname>AppendIterator::valid</methodname></member>
<member><methodname>AppendIterator::next</methodname></member>
<member><methodname>AppendIterator::rewind</methodname></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
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