The AllowDynamicProperties attribute

Вступ

This attribute is used to mark classes that allow dynamic properties.

Зауваження: Although attributes themselves are not inherited, the effect of the AllowDynamicProperties attribute is inherited. Child classes of a class marked with this attribute will also allow dynamic properties, even if they do not explicitly declare the attribute.

Короткий огляд класу

Приклади

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.

<?php
class DefaultBehaviour { }

#[\AllowDynamicProperties]
class ClassAllowsDynamicProperties { }

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

$o1->nonExistingProp = true;
$o2->nonExistingProp = true;
?>

Deprecated: Creation of dynamic property DefaultBehaviour::$nonExistingProp is deprecated in file on line 10

<?php
class DefaultBehaviour { }

#[\AllowDynamicProperties]
class ClassAllowsDynamicProperties { }

class InheritedClassAllowsDynamicProperties extends ClassAllowsDynamicProperties { }

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

$o1->nonExistingProp = true;
$o2->nonExistingProp = true;
?>

Deprecated: Creation of dynamic property DefaultBehaviour::$nonExistingProp is deprecated in file on line 12

Прогляньте також

Attributes overview