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Asked: 2026-05-13T19:27:10+00:00

Following my previous question , in which I think I’ve narrowed my problem down

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Following my previous question, in which I think I’ve narrowed my problem down to the bottleneck:

How do I set the correct value for the Content-Length header for a downloadable file, from within PHP, when the webserver (apache) automatically compresses the ouput afterwards?

I’m looking for the most robust/generic solution. I’m not well informed about output compression, but I presume apache has several compression algorithms it can utilize (gzip, etc?). So, from within PHP, how would I automatically discover what compression the webserver uses, and how can I use this to set the correct Content-Length header value for the filesize of the file (after it’s been compressed)?

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1 Answer

  1. Editorial Team

    You don’t need to specify Content-Length, Apache does that for you.

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