wget http://pecl.php.net/get/redis-4.2.0.tgz
tar -zxvf redis-4.2.0.tgz
cd redis-4.2.0
/usr/local/php5.6/bin/phpize
./configure --with-php-config=/usr/local/php5.6/bin/php-config
make
make install
编辑php.ini 加入扩展
extension = /usr/local/php5.6/lib/php/extensions/debug-non-zts-20131226/redis.so
重启php-fpm 测试查看redis扩展是否正常加载