cd /usr/lee
wget http://pecl.php.net/get/redis-4.2.0.tgz
tar -xzvf redis-4.2.0.tgz
cd ./redis-4.2.0
/usr/local/php7/bin/phpize
./configure --with-php-config=/usr/local/php7/bin/php-config
make & make install
vim /usr/local/php7/etc/php.ini
extension=redis.so
# 可能问题
yum install autoconf
echo '/usr/local/lib64 /usr/local/lib /usr/lib /usr/lib64'>>/etc/ld.so.conf