This is the default example configuration of phpiredis.ini provided by Redis. This config file was generated by Redis running on CentOS 7.
It is located under: /etc/php.d/phpiredis.ini
; Enable phpiredis extension module
extension=phpiredis.so
Download the raw file with wget or curl
wget -O phpiredis.ini.example http://exampleconfig.com/static/raw/redis/centos7/etc/php.d/phpiredis.ini
curl http://exampleconfig.com/static/raw/redis/centos7/etc/php.d/phpiredis.ini > phpiredis.ini.example
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