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All pages tagged SECURE

Secure File Upload with PHP

PHP makes uploading files easy. You can upload any type of file to your Web server. In spite of security issues that should be addressed before enabling file uploads, the actual mechanisms to allow this are straight forward. In this tutorial we will consider how to upload files to some directory on your Web server. We will also discuss security issues concerned with the file uploading. More...

Tags: PHP SECURE FILE UPLOAD HTML VALIDATION SIZE TYPE UNIQUE Hits: 390544 Comments: 45

Create CAPTCHA Protection using PHP and AJAX

CAPTCHA is a simple test to determine if a user is a computer or a human. It is used to prevent spam abuse on the websites. The goal of this tutorial is to demonstrate how to make your own simple CAPTCHA protection using PHP and AJAX technologies. More...

Tags: PHP JAVASCRIPT AJAX CAPTCHA DYNAMIC IMAGE GENERATION GD SECURE SPAM Hits: 247274 Comments: 34

PHP: How to Encrypt Passwords in the Database

If you are developing a password-protected web site, you have to make a decision about how to store user password information securely. This article will show you how to encrypt user passwords with md5 algorithm and how to start using encrypted passwords if you already have users' database ready. More...




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