In this tutorial I will show you how to work with sessions in PHP. You will learn how to transfer information over multiple pages.
A quick introduction to PHP sessions and the use of the most basic session handling functions.
In this article, you will find out the reasons to use cookies and the reasons to use sessions. It also tells you the way hide important data from cookies.
Session concept is very useful for Web based applications to pass and share information from one Web page (request) to another Web page (request). Session support in PHP consists of a way to preserve certain data across subsequent accesses. This enables you to build more customized applications and increase the appeal of your web site. A visitor accessing your web site is assigned a unique id, the so-called session id. This is either stored in a cookie on the user side or is propagated in the URL. A PHP session solves this problem by allowing you to store user information on the server for later use (i.e. username, shopping cart items, etc). However, this session information is temporary and is usually deleted very quickly after the user has left the website that uses sessions.
This package can be used to save and restore objects in session variables.
It can register a list of one or more classes objects that are intended to be saved. The classes must implement the SessionObject interface.
The class can call all the registered classes to save and restore the state of the session objects.
This script can display a form or the data stored inside cookies depending on whether cookies has been set or not.
The online form is used to send data and store them inside cookies.
The script contains an online example.
A session is the time that a user spends at your Web site. Users may view many Web pages between the time they enter your site and leave it. Often you want information to be available for a complete session. Beginning with version 4.0, PHP provides a way to do this.
PHP allows you to set up a session and store session variables. After you create a session, the session variables are available for your use on any other Web page.
PHP has a function setcookie since version 3.0, but this function is too low-level for simple usage.
Function ae_put_cookie provided, sets cookie for current domain without specifying long arguments lists. Just three arguments: 'name', 'value', session cookie flag/number of days/forever cookie flag
A collection of 19 tips on understanding and using sessions in PHP. Clear explanations and tutorial exercises are provided on starting and closing sessions, saving and retrieving values in sessions, deciding how session IDs to be transferred, deciding where to store session files, deciding when to expire session values, etc. Topics included in this collections:
What Is a Session?
How To Turn On the Session Support?
How To Save/Retrieve Values to the Current Session?
What Is a Session ID?
How To Retrieve the Session ID of the Current Session?
What Are the Options to Transfer Session IDs?
How Session IDs Are Transferred on Your Web Server?
How To Force the PHP Engine to Use Cookies to Transfer Session IDs?
Is It More Secure to Use Cookies to Transfer Session IDs?
Where Are the Session Values Stored?
What Set the Timeout Period on Session Values?
How To Remove Values Saved in the Current Session?
How To Tell If a Session Is New?
What Is session_register()?
This Article takes you step by step in creating a member system for your site. From designing mySQL tables, creating a registration script and logging them in with sessions and cookies.
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