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  1. PHP Manual Language Reference Predefined Interfaces and Classes Generator Change language:

  2. The __wakeup method is a magic method in PHP, which is automatically called during object deserialization. It allows restoring the object's resources or performing additional actions after deserialization.

    • Resource Values
    • Object Graph
    • Closures

    However, serialize() cannot serialize (i.e. transform into a textual representation) values of the resource type. This is why all of these values will go missing after unserialize()ing it.

    or members, and the member's members and the ... ad infinitum Another, perhaps more important point is, that serialize() will traverse the entire object graph of $objif you serialize it. This is great when you need it, but if you only need parts of the object and certain linked objects are "runtime-specific" and shared across a lot of objects but a...

    Last but not least, closures do not support serialization either. This means that you will have to re-create all attached closures in __wakeup().

  3. Apr 24, 2022 · Okay, so, how do we tell PHP which properties should ignore and which should include when the serialize function is being invoked? Using __sleep and __wakeup magic methods during serialization ...

    • Lucas Pereyra
  4. Jul 23, 2025 · In PHP, the __sleep and the __wakeup methods are called as magic methods. These methods are invoked or executed when we want to deal with serialization and deserialization of objects during runtime to store or save the object information in string format and again the information can be restored.

  5. Sep 4, 2024 · When dealing with serialization and deserialization in PHP, two lesser-known but crucial magic... Tagged with webdev, programming, java, development.

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  7. Simple usage example of `Generator::__wakeup ()`. The `Generator::__wakeup` function is used in PHP to restore a serialized generator object. This function is automatically called during the deserialization process and allows you to initialize the generator object with the previously serialized state.