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The Serializable interface

The Serializable interface

Interface for customized serializing.

Classes that implement this interface no longer support
 and
. 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.

__sleep()__wakeup()

Waarschuwing: > As of PHP 8.1.0, a class which implements without also implementing and will generate a deprecation warning. Serializable__serialize()__unserialize()

SerializableVoorbeeld: Basic usage

<?php
class 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());
?>

string(38) "C:3:"obj":23:{s:15:"My private data";}"
string(15) "My private data"
Vorige ← SensitiveParameterValue::getValue Volgende Serializable::serialize →

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