I recently needed to set up a new development system with Apache and PHP. The last time I configured these two programs was when PHP was at 5.2.x and the ZIP file included a php.ini-development. The most recent version of PHP is 5.4.4 and does not include a php.ini-development.
The PHP application being developed on this system offers a setting for compressing the output for client browsers that support compression. When I turned on this setting, I received this error:
ob_start(): output handler 'ob_gzhandler' conflicts with 'zlib output compression'
Nothing had changed in the PHP application. The only thing that changed was the PHP version. If I were a little less experienced, I may have thought that I found a bug in the latest version of PHP. Instead, I figured that either something had changed in the API and my implementation had been incorrect from the start, or I had something configured wrong.
I compared the php.ini from the old 5.2.x with the php.ini from 5.4.4 and found a difference in the
In 5.2.x, the php.ini-development has
output_buffering set to
Off. In 5.4.4,
output_buffering is set to
4096. I set
Off and I am no longer receiving the error.