Php/docs/class.serializable
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
Introduction
Interface for customized serializing.
Classes that implement this interface no longer support __sleep() and __wakeup(). The method serialize is called whenever an instance needs to be serialized. This does not invoke __destruct() or have any other side effect unless programmed inside the method. When the data is unserialized the class is known and the appropriate unserialize() method is called as a constructor instead of calling __construct(). If you need to execute the standard constructor you may do so in the method.
Interface synopsis
Serializable {
abstract public serialize ( ) : string
abstract public unserialize
( string $serialized
) : void
}
Example #1 Basic usage
<?phpclass obj implements Serializable { private $data; public function __construct() { $this->data = "My private data"; } public function serialize() { return serialize($this->data); } public function unserialize($data) { $this->data = unserialize($data); } public function getData() { return $this->data; }}$obj = new obj;$ser = serialize($obj);var_dump($ser);$newobj = unserialize($ser);var_dump($newobj->getData());?>
The above example will output something similar to:
string(38) "C:3:"obj":23:{s:15:"My private data";}"
string(15) "My private data"
Table of Contents
- Serializable::serialize — String representation of object
- Serializable::unserialize — Constructs the object
/* Methods */