mirror of
https://github.com/php/doc-en.git
synced 2026-03-23 23:32:18 +01:00
150 lines
3.8 KiB
XML
150 lines
3.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
<reference xml:id="class.php-incomplete-class" role="class" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">
|
|
|
|
<title>The __PHP_Incomplete_Class class</title>
|
|
<titleabbrev>__PHP_Incomplete_Class</titleabbrev>
|
|
|
|
<partintro>
|
|
|
|
<section xml:id="php-incomplete-class.intro">
|
|
&reftitle.intro;
|
|
<para>
|
|
Created by <function>unserialize</function>
|
|
when trying to unserialize an undefined class
|
|
or a class that is not listed in the <literal>allowed_classes</literal>
|
|
of <function>unserialize</function>'s <parameter>options</parameter> array.
|
|
</para>
|
|
|
|
<para>
|
|
Prior to PHP 7.2.0, using <function>is_object</function> on the
|
|
<classname>__PHP_Incomplete_Class</classname> class would return &false;.
|
|
As of PHP 7.2.0, &true; will be returned.
|
|
</para>
|
|
</section>
|
|
|
|
<section xml:id="php-incomplete-class.synopsis">
|
|
&reftitle.classsynopsis;
|
|
|
|
<classsynopsis class="class">
|
|
<ooclass>
|
|
<modifier role="attribute">#[\AllowDynamicProperties]</modifier>
|
|
<modifier>final</modifier>
|
|
<classname>__PHP_Incomplete_Class</classname>
|
|
</ooclass>
|
|
</classsynopsis>
|
|
|
|
<para>
|
|
This class has no default properties or methods.
|
|
When created by <function>unserialize</function>,
|
|
in addition to all unserialized properties and values
|
|
the object will have a <literal>__PHP_Incomplete_Class_Name</literal> property
|
|
which will contain the name of the unserialized class.
|
|
</para>
|
|
</section>
|
|
|
|
<section xml:id="php-incomplete-class.changelog" role="changelog">
|
|
&reftitle.changelog;
|
|
<informaltable>
|
|
<tgroup cols="2">
|
|
<thead>
|
|
<row>
|
|
<entry>&Version;</entry>
|
|
<entry>&Description;</entry>
|
|
</row>
|
|
</thead>
|
|
<tbody>
|
|
<row>
|
|
<entry>8.0.0</entry>
|
|
<entry>
|
|
This class is now <literal>final</literal>.
|
|
</entry>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</informaltable>
|
|
</section>
|
|
|
|
<section xml:id="php-incomplete-class.examples" role="examples">
|
|
&reftitle.examples;
|
|
<example xml:id="php-incomplete-class.basic-example">
|
|
<title>Created by <function>unserialize</function></title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
|
|
class MyClass
|
|
{
|
|
public string $property = "myValue";
|
|
}
|
|
|
|
$myObject = new MyClass;
|
|
|
|
$foo = serialize($myObject);
|
|
|
|
// unserializes all objects into __PHP_Incomplete_Class objects
|
|
$disallowed = unserialize($foo, ["allowed_classes" => false]);
|
|
|
|
var_dump($disallowed);
|
|
|
|
// unserializes all objects into __PHP_Incomplete_Class objects except those of MyClass2 and MyClass3
|
|
$disallowed2 = unserialize($foo, ["allowed_classes" => ["MyClass2", "MyClass3"]]);
|
|
|
|
var_dump($disallowed2);
|
|
|
|
// unserializes undefined class into __PHP_Incomplete_Class object
|
|
$undefinedClass = unserialize('O:16:"MyUndefinedClass":0:{}');
|
|
|
|
var_dump($undefinedClass);
|
|
]]>
|
|
</programlisting>
|
|
&example.outputs;
|
|
<screen>
|
|
<![CDATA[
|
|
|
|
object(__PHP_Incomplete_Class)#2 (2) {
|
|
["__PHP_Incomplete_Class_Name"]=>
|
|
string(7) "MyClass"
|
|
["property"]=>
|
|
string(7) "myValue"
|
|
}
|
|
object(__PHP_Incomplete_Class)#3 (2) {
|
|
["__PHP_Incomplete_Class_Name"]=>
|
|
string(7) "MyClass"
|
|
["property"]=>
|
|
string(7) "myValue"
|
|
}
|
|
object(__PHP_Incomplete_Class)#4 (1) {
|
|
["__PHP_Incomplete_Class_Name"]=>
|
|
string(16) "MyUndefinedClass"
|
|
}
|
|
|
|
]]>
|
|
</screen>
|
|
</example>
|
|
</section>
|
|
|
|
</partintro>
|
|
|
|
</reference>
|
|
<!-- 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
|
|
-->
|