PHP Web Fundamentals Compressing Web Output - Web Development and Design | Tutorial for Java, PHP, HTML, Javascript PHP Web Fundamentals Compressing Web Output - Web Development and Design | Tutorial for Java, PHP, HTML, Javascript

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Wednesday, May 29, 2019

PHP Web Fundamentals Compressing Web Output

PHP Web Fundamentals




Compressing Web Output


Problem

You want to send compressed content to browsers that support automatic decompression.

Solution

Add this setting to your php.ini file:

          zlib.output_compression=1       

Discussion     

Browsers tell the server that they can accept compressed responses with the Accept-Encoding header. If a browser sends Accept-Encoding: gzip or Accept-Encoding: deflate, and PHP is built with the zlib extension, the zlib.output_compression configuration directive tells PHP to compress the output with the appropriate algorithm before sending it back to the browser. The browser uncompresses the data before displaying it.
           
You can adjust the compression level with the zlib.output_compression_level configuration directive:

          ; minimal compression
          zlib.output_compression_level=1

          ; maximal compression
          zlib.output_compression_level=9

At higher compression levels, less data needs to be sent from the server to the browser, but more server CPU time must be used to compress the data.



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