3
Quote:
coz I can't see any difference?
If you could, it was not working properly!
What does it?
Before sending the HTML source of your page from the server to your browser, it is being compressed with ZIP. This allows that shorter messages are sent over the network. Your browser unzips it and then shows it in the same way as it would have received the page in full (=uncompressed).
There is an advantage for slow and/or limited bandwidth networks, as in the case of eg home servers via an ADSL network.
On the other hand the server needs to put the processor at work to do the compression and your navigator does the same on your PC to uncompress.
So, it is not so easy to see the avantage on individual page loads, but in particular, well suited cases, there is a substantial overal benefit.
It has nothing to do with MySQL. But it will not activate or run when running PHP as CLI.