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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 292734 $ -->
<phpdoc:classref xml:id="class.splobjectstorage" 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 SplObjectStorage class</title>
<titleabbrev>SplObjectStorage</titleabbrev>
<partintro>
<!-- {{{ SplObjectStorage intro -->
<section xml:id="splobjectstorage.intro">
&reftitle.intro;
<para>
The SplObjectStorage class provides a map from objects to data or, by
ignoring data, an object set. This dual purpose can be useful in many
cases involving the need to uniquely identify objects.
</para>
</section>
<!-- }}} -->
<section xml:id="splobjectstorage.synopsis">
&reftitle.classsynopsis;
<!-- {{{ Synopsis -->
<classsynopsis>
<ooclass><classname>SplObjectStorage</classname></ooclass>
<!-- {{{ Class synopsis -->
<classsynopsisinfo>
<ooclass>
<classname>SplObjectStorage</classname>
</ooclass>
<oointerface>
<interfacename>Countable</interfacename>
</oointerface>
<oointerface>
<interfacename>Iterator</interfacename>
</oointerface>
<oointerface>
<interfacename>Traversable</interfacename>
</oointerface>
<oointerface>
<interfacename>Serializable</interfacename>
</oointerface>
<oointerface>
<interfacename>ArrayAccess</interfacename>
</oointerface>
</classsynopsisinfo>
<!-- }}} -->
<classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
<xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.splobjectstorage')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
</classsynopsis>
<!-- }}} -->
</section>
<!-- {{{ splobjectstorage examples -->
<section xml:id="splobjectstorage.examples">
&reftitle.examples;
<para>
<example>
<title><classname>SplObjectStorage</classname> as a set</title>
<programlisting role="php">
<![CDATA[
<?php
// As an object set
$s = new SplObjectStorage();
$o1 = new StdClass;
$o2 = new StdClass;
$o3 = new StdClass;
$s->attach($o1);
$s->attach($o2);
var_dump($s->contains($o1));
var_dump($s->contains($o2));
var_dump($s->contains($o3));
$s->detach($o2);
var_dump($s->contains($o1));
var_dump($s->contains($o2));
var_dump($s->contains($o3));
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
bool(true)
bool(true)
bool(false)
bool(true)
bool(false)
bool(false)
]]>
</screen>
</example>
<example>
<title><classname>SplObjectStorage</classname> as a map</title>
<programlisting role="php">
<![CDATA[
<?php
// As a map from objects to data
$s = new SplObjectStorage();
$o1 = new StdClass;
$o2 = new StdClass;
$o3 = new StdClass;
$s[$o1] = "data for object 1";
$s[$o2] = array(1,2,3);
if (isset($s[$o2])) {
var_dump($s[$o2]);
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
array(3) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
}
]]>
</screen>
</example>
</para>
</section>
<!-- }}} -->
</partintro>
&reference.spl.entities.splobjectstorage;
</phpdoc:classref>
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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
-->
|
