I am currently having problems with a custom written
web-authentication-proxy.  The proxy works fine with standard html pages but
not with php pages.  After doing a bit of digging I have found that the
proxy does a HEAD request and checks the Content-Length to see if the page
if valid.

I have been able to use

Header( "Content-Length: 100" )

to fool the proxy into loading the php page.

My question is how do I go about calculating the correct Content-Length for
each and every php page on my site.

I have done some digging and presume I need to do "Output buffering" and
calculate the strlen of the response the php returns, but how do I reference
the result of a php page to get a strlen from it??

Any assistance would be welcome



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