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    The AllowDynamicProperties class

    (PHP 8 >= 8.2.0)

    Introduction

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

    Class synopsis

    final class AllowDynamicProperties {
    /* Methods */
    public __construct()
    }

    Examples

    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;
    ?>

    Output of the above example in PHP 8.2:

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

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