Pnotepad (programmer's notepad) I don't know where i downloaded but it's free and easy and best for me.
I have been using TextPad to code for the web for years and find it the best over all editor. It is fast. Easy to create macros and perform multi file changes.
Also for Linux (Ubunut)... Quanta Plus for larger projects. Gedit for small test scripts and one-off projects. - Walkere
Notepad2 rocks! It color coordinates your coding so you can catch yourself sometimes BEFORE you make a mistake in the coding.
I'm using Notepad++ on Windows and SciTE on Linux. And sometimes, when I use an old computer, I use "vim".
I have used NuSphere as a PhP IDE and I am very satisfied. I saw people talking about phpeclipse and I even saw this video codervods.com/VideoPage.aspx?ID=924&&category=PHP and I would ask someone who has used both which is better. Thanks.
PHP Designer without a shadow of a doubt. Runs through your code as you write it, so you can see errors such as missed semi-colons instantly, all the normal code highlighting and an awesome code reference, it even understands user created classes perfectly, so if you're typing say: $name = new Class; $name->function($var1, $var2, [... $varx]); It will popup with the required variables in each game, particularly awesome if you've already documented your code properly. www.phpdesigner.dk Dan
PSpad is a great freeware editor for php, html, any code. Thats what I use. I used to use PHP Designer 2007/8 until the trial expired.