Geany is a small and lightweight integrated development environment. Basic features are syntax highlighting, code completion, code folding, call tips, many supported filetypes.
I found Geany as an ubuntu package and have fallen in love with it! The function completion in php is a godsend with all the different naming_styles that CodersUseForFunctions. Sadly, my favorite part isn't working on the Windows install: php double quote and single quote strings. Geany really helped my coding with this feature but it seems no one is going to bother to make a fix for it, claiming nothing is wrong... check their bug # 875 This is a minus 2 stars, sorry folks.