IMPRESS dotted_line CONTACT dotted_line search dotted_line Kontakt dotted_line sitemap dotted_line print
114 PHP-Resource users online

Switch to another languags Deutsch aktuelle Sprache Englisch
php-resource

PHP Manual


The Serializable interface

(PHP 5 >= 5.1.0)

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 has 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 {
/* Methods */
abstract public string serialize ( void )
abstract public void unserialize ( string $serialized )
}

Example #1 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());
?>

The above example will output something similar to:

string(38) "C:3:"obj":23:15:"My private data";"
string(15) "My private data"

Table of Contents




Comments to the PHP manual
Write new comment
 



 

New Tutorial entries

Migration einer PHP 5 App auf PHP 7

Dieses PHP 7 Tutorial zeigt dir, wie du dein PHP5 Script auf PHP7 umstellst.

Berni | Category: PHP
PHP 7 Virtual Machine

Dieser Artikel zielt darauf ab, einen Überblick über die Zend Virtual Machine, wie es in PHP 7 gefunden wird.

Berni | Category: PHP
plotting masters - a professional guide - Teil II

Grafische Interpolation und Bestapproximation von numerischen Wertepaaren: Wir wollen Punkte auf einer Zeichenebene über verschiedene Verfahren miteinander verbinden.

EVAMasters | Category: PHP