How can you manipulate the member variable "xml" of an object to make it serializable in PHP?

To make the member variable "xml" of an object serializable in PHP, you can use the magic method "__sleep()" to explicitly specify which properties should be serialized. By including the "xml" property in the "__sleep()" method, you can control its serialization process. 

class YourClass implements Serializable {
    public $xml;

    public function __sleep() {
        return ['xml'];
    }

    public function serialize() {
        return serialize([$this->xml]);
    }

    public function unserialize($data) {
        [$this->xml] = unserialize($data);
    }
}

Keywords

serialization object member variable manipulation PHP

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