phpredis extension doesn't work, unable to load 'redis.so'

Question

I installed nginx, php, php-fpm, php-pecl-redis by yum.

All of them work but the last one.

When I run /usr/sbin/php-fpm, I got this:

Answer 1

Probably an issue with igbinary, is this installed? (try for example: cat /etc/php.d/igbinary.ini).

Here you can find and install igbinary