1.下载phpredis，解压并进入目录，在目录下运行phpize

/usr/local/php/bin/phpize

./configure --enable-redis-igbinary --with-php-config=/usr/local/php/bin/php-config

make && make install

如果提示：cannot find igbinary.h，需安装先安装igbinary

/usr/local/php/bin/phpize

./configure  --with-php-config=/usr/local/php/bin/php-config

make && make install

再执行第一步

Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20151012/

2.在php.ini下添加extension="redis.so"