SOLVED Issues Enabling zlib For W3 Total Cache

Aloha,

Server Info: CentOS 7.3 x86_64, WHM 62.0 B20.

I'm working on configuring W3 Total Cache, and have managed to resolve all dependencies and component installations, with the exception of one. No matter what php.ini file I edit, or where I insert various code, the "Compatibility Check" results in a notification:

zlib output compression: Off

I have reviewed numerous documents and threads regarding this, but still not getting anywhere with it.

Thoughts? Thanks! -Ian

 

Thanks for your prompt response.

The results of phpinfo show the following:

Configuration File (php.ini) Path - /opt/cpanel/ea-php56/root/etc/php.ini​

zlib.output_compression Off Off
zlib.output_compression_level -1 -1
zlib.output_handler no value no value​

php.ini - zlib section:

Code:

; Transparent output compression using the zlib library
; Valid values for this option are 'off', 'on', or a specific buffer size
; to be used for compression (default is 4KB)
; Note: Resulting chunk size may vary due to nature of compression. PHP
;   outputs chunks that are few hundreds bytes each as a result of
;   compression. If you prefer a larger chunk size for better
;   performance, enable output_buffering in addition.
; Note: You need to use zlib.output_handler instead of the standard
;   output_handler, or otherwise the output will be corrupted.
; [URL='http://php.net/zlib.output-compression']PHP: Runtime Configuration - Manual[/URL]
zlib.output_compression = on

; [URL='http://php.net/zlib.output-compression-level']PHP: Runtime Configuration - Manual[/URL]
zlib.output_compression_level = -1

; You cannot specify additional output handlers if zlib.output_compression
; is activated here. This setting does the same as output_handler but in
; a different order.
; [URL='http://php.net/zlib.output-handler']PHP: Runtime Configuration - Manual[/URL]
zlib.output_handler =

-Ian

 

The resolution, as it turned out, was discovered by Andrew @ cPanel in short order:

In WHM -> Software -> MultiPHP INI Editor -> Editor Mode, you have the following:

zlib.output_compression = Off

This disables zlib.output_compression in your PHP software.

After an Apache restart, it is showing as working in W3 Dashboard.

Thanks Andrew!