zlib html compression

Hello all, I'm currently re-designing my company's website. One of our major concerns is load time. I happened to stumble across some information on using zlib to compress pages using PHP. The advice seemed "to good to be true" the recommendation was setup an .htaccess file with the following: php_flag zlib.output_compression on php_value zlib.output_compression_level 6 It was my understanding this turns on output compression meaning that any page parsed any ".php" (or any other extension associated with php) will have its contents compressed if the requesting browser supports HTTP 1.1 Is this correct? If not can anyone point in the proper direction of doing this? I'm mainly interested in compressing a few key pages and a somewhat bloated .js file (which I realize the method above wouldn't do unless I ask to the server to parse .js as PHP...probably not a good idea...) Any help/comments/suggestions would be greatly appreciated. Thanks, David Hamilton