after having a closer look on RapidPHP and testing some things I now have a few feature requests and suggestions. Not all might be needed by everybody, but I think there're definitely some programmers who need these functions.
Macro
It records keyboard inputs (for example "Down", "Line end", ";") and these records can be repeated (maybe also a editor for editing macro-scripts and im- or exporting them)
FTP, special characters and Color in Panel
Both are nice functions, but the popup window which impedes the editor usage is really annoying. Put them into a panel like the file or code explorer.
Line selection mode
Instead of just normal and block selection mode another mode which lets you just select complete lines.
Remove needless spaces
Lets you decide which spaces are needless (all, end of line, begin of line, ...) and removes those.
Line sorting
Sorts all ore selected lines by alphabet or numerical from A->Z, Z->A or 1->9, 9->1.
Also a "remove duplicates" might be very useful.
Insert and keep cursor position
Normal insert:
Code: Select all
<p>|</p>

Code: Select all
<p>Inserted text|</p>
Code: Select all
<p>|</p>

Code: Select all
<p>|Inserted text</p>
Fullscreen
Fullscreen mode to hide distracting OS bars and have a better view at large code constructions.
Better File-Tab Bar positioning

Share Code Snippets
An option to share your own snippets with the RapidPHP Community by uploading it to a webserver. The same way you can receive code snippets by other users of RapidPHP. (Maybe you can use snipt.org for storing the code and just handle the index on your server).
HTML5 Inputs
Include the new HTML5 input elements.
File Comparison
Let RapidPHP compare two file versions or two other files and mark equal, slightly different and missing lines with colors.
Readonly Tab
An option to set a editor tab to Readonly, to prevent code changing by accident.
Divided editor
Divide the editor (like already possible with the preview) but then show in both sides the editor file to edit two different positions at the same time. Very useful if you often need functions, vars or code parts you programmed before and don't want to scroll up and down all the time.
Maybe not all suggestions sound expedient and some might only be implanted in far far future, but then it can be the best PHP editor available.
If you have a question, just ask!
Capricorn