I'm partial to ConTEXT (http://context.cx/) myself. You can download and update different highlighters, so both your HTML and PHP can be syntax highlighted (If the HTML is not in quotes).
It also can save a backup file upon saving, so if you make changes, and say "OH SHOOT!" you've got a chance of retrieving some code you removed.
ConTEXT is also flexible enough to adapt to different programming environments. When we were using the Pep/7 software machine in school, I set ConTEXT up to not only highlight the Pep/7 assembly language, but to assemble and run the Pep/7 object file.
I've also found the global search and replace option very useful. I can open all the files in a project, and then do a search and replace in all the files, not just the one.
Disclaimer: I'm not affiliated, I'm just really happy with the program.
I usually use Notepad++, but I've had a few people recommend Aptana to me. It looks pretty good, some nice features to it (like code assist, which is nice for lazy people like me =P), I just haven't had the patience to learn a new IDE.
I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...
I'm working in Excel to extract content of a table from a web page and populate Excel sheet cells with it. I'm trying to extract data from a table that gets loaded to a web page after show results method gets called. I have an error that says "Run-time error ...