PHP IDE Roundup

This is a roundup of the available PHP IDEs both free and commercial. You will find a wide range in pricing (free to $400) and options available on Windows, Linux, and Mac OS X including PHPAnywhere which is a web-based IDE.

If there are additional IDEs not covered here, please post a comment or submit it.

Commercial PHP IDEs

Delphi for PHP
Delphi for PHP revolutionizes web development with a completely integrated, rapid visual development approach and component framework for PHP. The proven and familiar RAD approach means you are quickly up to speed and productive.
Platforms: Windows
Free Trial: 30-day free trial
Price: $299.00

EditRocket
EditRocket, a Text and Source Code Editor with support for over 20 programming languages, includes a powerful PHP editor that strives to make PHP development quick, easy, and enjoyable.
Platforms: Windows, Linux, Mac OS X
Free Trial: 30-day free trial
Price: $39.95

NuSphere PhpED
PhpED is the Integrated Development Environment for PHP (PHP IDE), HTML, CSS, XML, SMARTY, XHTML and other. Balanced combination of advanced code editor, reliable dbg debugger, productive database connectivity client and fast and secure deployment abilities make PhpED a complete solution for most sophisticated developer needs.
Platforms: Windows
Free Trial: 30-day free trial
Price: $119 and up

phpDesigner
phpDesigner is more than just a PHP IDE and PHP EDITOR - it's also a full-featured HTML-, CSS- and JavaScript editor boosted with features so you can get your work done -- for both beginners and professional developers! phpDesigner assists you with everything from editing, analyzing, debugging to publishing websites powered by PHP, HTML, CSS to JavaScript plus other languages! phpDesigner supports not only working with your favorite PHP frameworks but also popular JavaScript frameworks jQuery, Ext JS, YUI, Dojo, MooTools and Prototype!
Platforms: Windows
Free Trial: 21-day free trial
Price: 99 euro

PHPEdit
PHPEdit is an integrated development environment specialized for PHP, the most popular web scripting language in the world. PHPEdit integrates all the tools you will need to carry out your web application projects.
Platforms: Windows
Free Trial: 30-day free trial
Price: 89 euro

Rapid PHP
Rapid PHP editor is a powerful, quick and sophisticated PHP editor with features of a fully-loaded PHP IDE and speed of the Notepad. Convenient features enable you to instantly create and edit not only PHP, but also HTML, XHTML, CSS and JavaScript code, while integrated tools allow you to easily debug, validate, reuse, navigate and format your code.
Platforms: Windows
Free Trial: 30-use free trial
Price: $39.85 and up

VS.Php
VS.Php is a PHP IDE (integrated development environment) based on Visual Studio IDE. With VS.Php you can design, develop, debug and deploy PHP applications within the Visual Studio IDE. VS.Php key features are around providing rich PHP editor as well as Smarty editing capabilities. Also is the ability to debug PHP scripts locally as well as remotely.
Platforms: Windows
Free Trial: 30-day free trial
Price: $99.99

Zend Studio
Zend Studio 7.0 is the next generation of our professional-grade PHP application development environment. It has been designed to maximize developer productivity by enabling you to develop and maintain code faster, solve application problems quickly and improve team collaboration.
Platforms: Windows, Linux, Mac OS X
Free Trial: Yes
Price: $399


Free PHP IDEs

Aptana Studio
Aptana Studio offers unprecedented support for Ajax combined with today's popular Web platforms. Download Studio standalone or plug it into Eclipse to see for yourself. It's your choice.
Platforms: Windows, Linux, Mac OS X
Price: Free

Code Lobster PHP Edition
Starting developing on PHP, probably you often face the problem which IDE to choose for Windows OS. Code Lobster offers a multifunctional IDE FREE absolutely with all standard features: PHP/HTML/CSS/JavaScript highlighting, advanced PHP/HTML/CSS/JavaScript autocomplete, Powerful PHP debugger, SQL autocomplete, Context and Dynamic Help and much more...
Platforms: Windows
Price: Free

Dev-PHP
Dev-PHP is a well-featured IDE for PHP. Fast and powerful, it is easy to use and has a lot of cool features: class browser, scripts preview, integration with PHP parsers, PHP-GTK library, and Xdebug of course. Dev-PHP-usb slips even into your pocket.
Platforms: Windows
Price: Free

Eclipse PDT
The PDT project provides a PHP Development Tools framework for the Eclipse platform. This project encompasses all development components necessary to develop PHP and facilitate extensibility. It leverages the existing Web Tools Platform (WTP) and Dynamic Languages Toolkit (DLTK) in providing developers with PHP capabilities.
Platforms: Windows, Linux, Mac OS X
Price: Free

Komodo Edit
Komodo Edit supports PHP, Python, Ruby, Perl and Tcl, plus JavaScript, CSS, HTML and template languages like RHTML, Template-Toolkit, HTML-Smarty and Django.
Platforms: Windows, Linux, Mac OS X
Price: Free

Netbeans
The NetBeans project offers a version of the IDE tailor-made for developing PHP sites. PHP developers do not need to install the full Java Development Kit (JDK) to run the NetBeans PHP IDE, the standard Java Runtime Environment (JRE) is sufficient. The NetBeans PHP editor is dynamically integrated with NetBeans HTML, JavaScript and CSS editing features such as syntax highlighting and the JavaScript debugger. NetBeans IDE fully supports iterative development, so testing PHP projects follows the classic patterns familiar to web developers.
Platforms: Windows, Linux, Mac OS X, Solaris
Price: Free

PHPanywhere
Develop and maintain your php applications in almost any browser, with all the comfort that you are used to in any desktop ide, with one major advantage: you can do your work anywhere (hotel, internet caffe, etc.)
Platforms: Web based
Price: Free

Shishkabab PHP IDE
This IDE was created to have a fast and stable PHP IDE. It is programmed in C++ using Qt/KDE technology, so it runs on Linux and BSD based systems.
Platforms: Linux and BSD
Price: Free