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<?xml version='1.0' encoding='iso-8859-1'?>
<!-- $Revision: 1.10 $ -->
<refentry xml:id="function.spl-autoload-register" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>spl_autoload_register</refname>
<refpurpose>Register given function as __autoload() implementation</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>spl_autoload_register</methodname>
<methodparam choice="opt"><type>callback</type><parameter>autoload_function</parameter></methodparam>
</methodsynopsis>
<para>
Register a function with the spl provided __autoload stack. If the stack
is not yet activated it will be activated.
</para>
<para>
If your code has an existing __autoload function then this function must
be explicitly registered on the __autoload stack. This is because
spl_autoload_register() will effectively replace the engine cache for
the __autoload function by either spl_autoload() or spl_autoload_call().
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>autoload_function</parameter></term>
<listitem>
<para>
The autoload function being registered.
If no parameter is provided, then the default implementation of
<function>spl_autoload</function> will be registered.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>spl_autoload_register</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
namespace Foobar;
class Foo {
static public function test($name) {
print '[['. $name .']]';
}
}
spl_autoload_register(__NAMESPACE__ .'::Foo::test'); // As of PHP 5.3.0
new InexistentClass;
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
[[Foobar::InexistentClass]]
Fatal error: Class 'Foobar::InexistentClass' not found in ...
]]>
</screen>
</example>
</para>
</refsect1>
</refentry>
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