Hasin Haydertalks about "getting comfy with PHPStorm" a relatively recent addition to the IDE ranks for PHP.

I am a big time fan of Netbeans and I left it a few days after it's release of 6.7. It was so good, heavenly, yummy but I had to leave this old pal because of it's extreme hunger to the available resources. [...] I left Netbeans and started using PhpStorm. I have a company license and I am glad that I made this move. I am not going to preach PhpStorm in rest of this article, but what I will do is sharing my experience with PhpStorm.

He goes through a list of his favorite things about the IDE - its speed it operates at overall, great Javascript/HTML intellisense, version control integration, less resource intensive and that it costs less overall (and comes from a "developer friendly" company).

If you're interested in trying out PHPStorm for yourself, you can find a demo at http://www.jetbrains.com/phpstorm.