Md5 is a very easy way to encrypt any stirng data. Following example take and encrypts a string. Remember that you could not dencrypt any data after encryption.

this will send out an email to the user telling them that the requested there password but it well send there username and password... lets set up the html part showing asking the users info like there user_name and there email address

When you build a form in your web page, you are susceptible to being spamed by automated systems. In order to make sure that the one who completes the form is human, you can use the system with image verification. You can see here a sample of form with a random text image verification.

The basic idea of the script is to provide a easy and secure way of keeping hackers from obtaining a user's password. This tutorial will teach you how to do this even if, god forbid, the hacker gains access to the MySQL Database. Even if he succeeds, he cannot gain the knowledge of users' passwords.

Ever had any nasty flamers or spammers on your site? Learn how to block their computers to stop them.

This tutorial is intended for those who want to ensure that the data retrieved by a form processor PHP is sent by the expected form, not another application or by hand.

This tutorial explains how to safely hide away PDF files from public access using htaccess, but then having a PHP file run its own authorization to allow access to the file without the Network Password dialog box. The PDF file will be displayed in the browser (if the user has acrobat reader) or promoted to download the pdf file if the user doesn't have acrobat reader. This is perfect for when you want to restrict PDF files to authorized eyes only. This simple to use tutorial will have you up and running in a few minutes, one page of info with full source code, and working examples.

Create the perfect defence system and protect your files from external execution

An admin login system that keeps the code quick and simple but maintains functionality

Learn how to use the php md5() function to secure user password in your user system.