php editor?

[Skyset]

If you use a decent FTP client you can do it with any text editor actually. Connect to your server via FTP, navigate to the file you want to edit, right-click on it and look for an option about editing it. It will open in your default text editor (like Notepad++) and when you'll save it, it will reupload itself.

Yeah exactly. FileZilla does that, and I recommend FileZilla for many reasons. You can just set your default editor in the settings to Notepad++ (I recommend Notepad++ too).