PHP & Sessions / Cookies

Sessions and cookies enable user login information, preferences and more to be stored without any user intervention. PHP sessions are great for temporary login storage, to keep users logged in at a site until the browser is closed. This makes sessions very safe and secure. However, cookies can save website preferences for a year, far longer than sessions. And cookies are stored on the user's computer, whereas sessions reside on the server. Giving users the option to choose which one they want to use can be helpful if their browser doesn't support one or the other. And with the simplicity of PHP, using either of these simultaneously on your website should be seamless to endusers.