PHP-Nuke is a web-based content management system. Modules can be added to the PHP-Nuke system allowing additional features such as an Internet forum, Calendar, News Feed, FAQs, Private Messaging and others. The site is maintained through an administration interface.

PHP-Nuke includes the following standard modules: Advertising—Manages ads on the page layout (theme). Supports images/links, JavaScript/HTML, and Flash Content—Manages the main content "pages" Downloads—Manages file downloads. There are no uploads—it stores links to files on other servers Encyclopedia—Manages phrases/words and definitions Feedback—Communicate to the webmaster. It is an online form, but provides feedback via email. Forums—Manages discussion forums for the site. It is based on bb2nuke, which is a PHP-Nuke port of the popular open-source phpBB discussion board. Journal—Maintain public and/or private notes Members List—Displays site members News—Manages news stories, including future-dated news to be released at a specific date and time. Each article can be assigned to a single category. Private Messages—Allows members to send private messages to others on the site. Members can prevent messages from other members. Statistics—Displays summary and detailed site statistics, including page views. Stories (News) Archives—Provides access to older news articles. Submit News—Allow visitors to submit news. Email notification is sent, but the submission is stored in the administrator control panel. Administrator can delete, edit, and/or post the article without rekeying. Surveys (Polls)—Create visitor surveys Top—Displays the most-visited articles, downloads, etc. Topics—Displays news by topic. The administrator defines the topics and assigns topics to content. Web Links—Manages a hierarchical directory of links to selected websites Your Account—Manages members "profile" information, including their preferred theme, the number of news articles to display on their home page, etc.