i am using the Gzip commpressionand Zlib commpression to speed up my website

I have used below code

ob_start("ob_gzhandler"); in common file that are include on all pages and

lib.output_compression = On

But after this i get the error like

"Warning: ob_start() [ref.outcontrol]: output handler 'ob_gzhandler' conflicts with 'zlib output compression' in E:\xampp\htdocs\projects\trunk\index.php on line 2"

Can any one suggest me what's wrong in it?

php apache gzip zlib
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