Eu fui com Geany : instala-se fora da caixa, integra-se bem com o UNR, é leve e suporta a sintaxe do PHP entre muitos outros idiomas.
Some basic features of Geany:
- Syntax highlighting
- Code folding
- Symbol name auto-completion
- Construct completion/snippets
- Auto-closing of XML and HTML tags
- Call tips
- Many supported filetypes including C, Java, PHP, HTML, Python, Perl, Pascal (full list)
- Symbol lists
- Code navigation
- Build system to compile and execute your code
- Simple project management
- Plugin interface (see Plugins)