(native) linux-php-editor with some advanced features?

Hey folks, I know this topic comes up again and again but I couldn't find any usefull php-editor for linux which is NOT written in java AND has some advanced features like a "file navigation" (listing all functions in a file with direct jump to them) or tooltips with the function definition or similar. I liked the features of the Zend IDE but its just to aching slow on linux (don't know why, but its much faster on windows), while other native editors are not made for php or just contain its syntax-highlightning without any further special features. Did I miss one of the available editors which provides these features? Thanks, Thomas