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Add inherited class example to AllowDynamicProperties #5458

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Merged
TimWolla merged 3 commits into from
Apr 3, 2026
Merged

Add inherited class example to AllowDynamicProperties #5458

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64042a4
allowDynamicProperties inherited class example
jordikroon Apr 2, 2026
3ae59ae
clarify AllowDynamicProperties attribute inheritance behavior
jordikroon Apr 2, 2026
e9b8639
use simpara over para
jordikroon Apr 2, 2026
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51 changes: 44 additions & 7 deletions language/predefined/attributes/allowdynamicproperties.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,19 @@

<section xml:id="allowdynamicproperties.intro">
&reftitle.intro;
<para>
<simpara>
This attribute is used to mark classes that allow
<link linkend="language.oop5.properties.dynamic-properties">dynamic properties</link>.
</para>
</simpara>
<note>
<simpara>
Although attributes themselves are not inherited, the effect of the
<literal>AllowDynamicProperties</literal> attribute <emphasis>is</emphasis>
inherited. Child classes of a class marked with this attribute will also
allow dynamic properties, even if they do not explicitly declare the
attribute.
</simpara>
</note>
</section>

<section xml:id="allowdynamicproperties.synopsis">
Expand All @@ -33,12 +42,13 @@

<section>
&reftitle.examples;
<para>
<simpara>
Dynamic properties are deprecated as of PHP 8.2.0,
thus using them without marking the class with this attribute will emit
a deprecation notice.
</para>
<informalexample>
</simpara>
<example>
<title>AllowDynamicProperties with non-existing property</title>
<programlisting role="php">
<![CDATA[
<?php
Expand All @@ -61,12 +71,39 @@ $o2->nonExistingProp = true;
Deprecated: Creation of dynamic property DefaultBehaviour::$nonExistingProp is deprecated in file on line 10
]]>
</screen>
</informalexample>
</example>
<example>
<title>AllowDynamicProperties with non-existing property in inherited class</title>
<programlisting role="php">
<![CDATA[
<?php
class DefaultBehaviour { }

#[\AllowDynamicProperties]
class ClassAllowsDynamicProperties { }

class InheritedClassAllowsDynamicProperties extends ClassAllowsDynamicProperties { }

$o1 = new DefaultBehaviour();
$o2 = new InheritedClassAllowsDynamicProperties();

$o1->nonExistingProp = true;
$o2->nonExistingProp = true;
?>
]]>
</programlisting>
&example.outputs.82;
<screen>
<![CDATA[
Deprecated: Creation of dynamic property DefaultBehaviour::$nonExistingProp is deprecated in file on line 12
]]>
</screen>
</example>
</section>

<section xml:id="allowdynamicproperties.seealso">
&reftitle.seealso;
<para><link linkend="language.attributes">Attributes overview</link></para>
<simpara><link linkend="language.attributes">Attributes overview</link></simpara>
</section>

</partintro>
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