phpSecurePages is a PHP module to secure pages with a login name and password. It can handle multiple user groups (each with their own viewing rights), store data in a MySQL database or a configuration file, and be used to identify your Web site viewers. It also has multiple language support as ...

The Lib2 PHP Library provides user authentication via sessions, statistics collection, forms management, an interface to SQL engines, formatting tools, and common administrative pages written in PHP. It's integrated with MySQL and Postgres.

Block User-agents via PHP. Very handy in keeping out unwanted e-mail harvesting programs, programs that copy websites, etc.

When developing web applications in PHP (or any other languages for that matter) there are several security aspects we should consider. In this article I'll try to explain some of the most common security flaws, and show simple ways to secure your site.

Class to crypt and decrypt data

The way to secure PHP scripts is through a carefully selected combination of configuration settings and safe programming practices. Based on the vulnerabilities that we have studied so far, we will now set forth to establish some rules that can help avoid dangerous situations.

A long, long time ago, during my early days with Web application development, I was asked to write an administration module for a Web site. This module was to be available only to site administrators, and so required user authentication, or login, at the entry point itself. I didn't know much ab ...