PanelBar for PHP supports many features and abilities. These are some of them:

• Server-side Web Control - A custom PHP library, which allows full programmatic access to the control’s appearance and behaviors.
• HTML5 Compatibility - The rendered DHTML code supports all the latest modern web browsers.
• Expand/Collapse Modes - Multiple types of expand/collapse behaviors are available. You can have a single-click expand one group and collapse another (only one group is expanded at a time), or each group can behave independently (multiple groups expanded).
• Sizing Options - Specify fixed dimensions, dynamically resize to fit a framed or non-framed area or each group can automatically size to its content.
• Scrollable List - When there is not enough space to display all of the items within a group, buttons will appear to allow scrolling of the items.
• Animation and Float - Sliding animation is available for group transitions, as well as the ability to move the PanelBar along with the page scroll.
• Custom HTML Sections - Within a group you can place your own HTML above or below the items, or do not display any items at all and show your own content.
• Client-side Events - In addition to navigating to a URL, you can invoke custom JavaScript functions at the browser when the user clicks on a group or item.
• Customizable Appearance - Colors, sizes, borders, images and fonts can all be customized to visually integrate with any project.