In this php login script i used md5 encryption method to secure the password from others. Also some others encryption technique are available in php like base64_ encode, sha1, password hash etc. Now a days mostly use hash techniques. But i will discuss in my upcoming post. This post is just for very beginner level and an introduction about encryption with md5. - See more at: http://click4knowledge.com/php-login-script-with-encryption.html