I have experience with Visual C++ and Bloodshed compilers. For php I've been using an online parser and notepad and it's obviously not as robust as a dedicated compiler. I know PHP doesn't compile, but the mentioned compilers do allow for easier reading of code and allows for easier formatting. That's what I'm looking for more than anything, color changes for comments, tabs for indenting, additional ease of managing several html and php files at once.
I don't know what it would be called for PHP if one even exists, I'm sure "compiler" isn't it, but a "parser" doesn't sound exactly correct either.