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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 292734 $ -->
<phpdoc:classref xml:id="class.serializable" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
<title>The Serializable interface</title>
<titleabbrev>Serializable</titleabbrev>
<partintro>
<!-- {{{ Serializable intro -->
<section xml:id="serializable.intro">
&reftitle.intro;
<para>
Interface for customized serializing.
</para>
<para>
Classes that implement this interface no longer support
<link linkend="language.oop5.magic.sleep">__sleep()</link> and
<link linkend="language.oop5.magic.sleep">__wakeup()</link>. The method serialize is
called whenever an instance needs to be serialized. This does not invoke __destruct()
or has any other side effect unless programmed inside the method. When the data is
unserialized the class is known and the appropriate unserialize() method is called as
a constructor instead of calling __construct(). If you need to execute the standard
constructor you may do so in the method.
</para>
</section>
<!-- }}} -->
<section xml:id="serializable.synopsis">
&reftitle.interfacesynopsis;
<!-- {{{ Synopsis -->
<classsynopsis>
<ooclass><classname>Serializable</classname></ooclass>
<!-- {{{ Class synopsis -->
<classsynopsisinfo>
<ooclass>
<classname>Serializable</classname>
</ooclass>
</classsynopsisinfo>
<!-- }}} -->
<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.serializable')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
</classsynopsis>
<!-- }}} -->
</section>
<section xml:id="serializable.examples">
<example xml:id="serializable.example.basic"><!-- {{{ -->
<title>Basic usage</title>
<programlisting role="php">
<![CDATA[
<?php
class obj implements Serializable {
private $data;
public function __construct() {
$this->data = "My private data";
}
public function serialize() {
return serialize($this->data);
}
public function unserialize($data) {
$this->data = unserialize($data);
}
public function getData() {
return $this->data;
}
}
$obj = new obj;
$ser = serialize($obj);
$newobj = unserialize($ser);
var_dump($newobj->getData());
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
string(15) "My private data"
]]>
</screen>
</example><!-- }}} -->
</section>
</partintro>
&language.predefined.serializable.serialize;
&language.predefined.serializable.unserialize;
</phpdoc:classref>
<!-- 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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