OK - sorry if this is the wrong thread to post in - not sure what the right one would be.

Has anyone had any experience minifying html/css/javascript for optimising for Google page speed?

We're building a site out of .php includes - do we have to manually minify each file or is there something that can minify the whole site on the fly or in one go? Does that make sense?

Same goes for the CSS, javascript etc...

Cheers all