If you are a PHP programmer then you might be wondering if there are any free PHP IDEs editor for PHP with WYSIWYG environment. This site lists some of the best and freely available editors for PHP. Most of them are free to download under GNU/GPL license. The following are some of the best free editors for PHP application development.
A free source code editor supports various languages including HTML, PHP, SQL and more. It supports syntax highlighting and WYSIWYG environment. It is under GPL license. Free powerful editor runs on all platforms including windows, linux, mac, solaris etc. It is a powerful IDE for programmers and web developers. 
It is a small and fast editor for software developers. It supports PHP and other various languages. It is a freeware. Free IDE Framework for supports many languages with code formatter, debugger and parser. You will need to download PHP plugin PHPEclipse from sourceforge.
Free editor for PHP, HTML and other various environments. It has a built in ftp client and spell checker. Geany is a free, light weight IDE on Linux platforms. It supports editing of PHP, HTML, Perl and many more languages. 
Dev-PHP is a powerful IDE for PHP to create PHP scripts and applications. It is a free software with GNU General public license. PHP Editor is a freeware editor with syntax hightlighting for PHP and other multitude of programming languages. It has a built in browser and a small webserver. PHP Code is a free to download IDE for PHP programming and development. It is lightweight and supports full syntax highlighting for PHP and HTML Netbeans IDE is a free and open source IDE which can be easily configured for PHP programming. Aptana Studio community edition is a open source implementation for ajax and PHP. Compact, fast and easy to use IDE for PHP developers. It is free for download. Multifunctional PHP editor supporting autocomplete PHP, HTML, JavaScript, CSS code highlighting with debugger and SQL autocompleter. It is free for download Free html editor for easy management of your projects. It has also integration to CSS and PHP highlighting. PHP Tools is lightweight PHP integration for Visual Studio 
A free light weight PHP code editor with syntax highlighting. It is a freeware and works for Win 98/2000/XP systems. A web based editor for server side PHP code. It is written with PHP and free to use. A freeware editor for PHP, HTML and ASP for Windows. An open source editor for HTML, PHP, Perl, JavaScript, CSS and many other languages. It has syntax highlighting, code completion, php debugger and SQL designer. Freeware editor for all html, php and javascript including xml files. It has features like code completion and runs on Window, Mac os X and linux. It is a freeware editor. Free editor for HTML, CSS and PHP. It is limited to personal use only. Free open source software with IDE, compiler and syntax highlighter. It is free to download and works in Linux, OpenBSD and Windows platforms.
