php中将一个对象保存到Session中的方法

<?php
//
//File: person_class.inc.php
//Contains the class definition necessary to let an object be a session
//variable.
//
class Person
{
var $name;
var $email;
//
// A simple function to illustrate the point
//
function clean_name ()
{
$name = preg_replace("/h(.)+/i", "1", $this->name);
return substr($name, 0, 15);
}
}
?>

<?php
//
//File: main.php
//Here is where we save and retrieve the object
//
include_once 'person_class.inc.php';
session_register('someperson');
if (!$someperson) {
$someperson = new Foo;
$someperson->name = "Item Raja";
$someperson->email = "itemraja@php.net";
$someperson->clean_name();
}
?>
<a href="somePage.php">Click Here</a>

<?php
//
//File: somePage.php
//Print out the name without initializing the
//class and setting the variables
//
include_once 'person_class.inc.php';
session_register('foobar');
print $foobar->name;
?>