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<?php
interface Serializable {
public function writeObject();
}
class Point implements Serializable {
public $x;
public $y;
public function writeObject() {
return serialize( $this );
}
}
class Item implements Serializable {
public function writeObject() {
return serialize( $this );
}
}
class Serializer {
private $sArray = array();
function register( Serializable $obj ) {
$this->sArray[] = $obj;
}
function output() {
foreach ( $this->sArray as $obj ) {
print $obj->writeObject()."\n";
}
}
}
$serializer = new Serializer();
$serializer->register( new Item() );
$serializer->register( new Point() );
print "<pre>";
$serializer->output();
print "</pre>";
?>
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