Special Methods
Special methods are methods declared in classes, whose name begins with an underscore character,
and that are called by the interpreter in the following situations:
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_attach
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When an object is attached to or detached from its parent.
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_call
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When using an object as if it is a function.
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_compare
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When comparing an object with another one.
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_free
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When an object is being freed.
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_get
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When reading an object as if it is an array.
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_init
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When the object class is loaded.
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_next
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When enumerating the object.
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_new
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When an object is created.
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_property
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To know if an unknown symbol is a method or a property.
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_put
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When writing to an object as if it is an array.
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_read
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When unserializing an object from a stream. Desde 3.15
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_ready
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When an object construction is finished, and an object is ready to be used. Desde 3.9
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_unknown
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When trying to use an unknown object method or property.
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_write
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When serializing an object to a stream. Desde 3.15
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