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apachecachingubuntucache-controlphp

How to modify the "HTTP_CACHE_CONTROL" variable that appears in the phpinfo() file under Apache Environment?

How to modify the "HTTP_CACHE_CONTROL" variable that appears in the phpinfo() file under Apache Environment?

I have root access on UBUNTU.

Solution

  • All environment variables in the form HTTP_XXX are the HTTP headers received from the client. The Header name is uppercase, the -s replaced by _s, and HTTP_ prefixed.

    So HTTP_CACHE_CONTROL is the value of the Cache-Control header received from the client. It's not something configured on your server, it's based on what the client sends.