路径和php.ini里面都加了，然后一重启php-fpm就报错
具体错误如下：
Starting php-fpm [08-Oct-2018 11:43:56] NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so' (tried: /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so (/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so: undefined symbol: zval_used_for_init), /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718//usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so.so (/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718//usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Warning: PHP Startup: Unable to load dynamic library '/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so' (tried: /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so (/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so: undefined symbol: zval_used_for_init), /usr/local/php/lib/php/extensions/no-debug-non-zts-20170718//usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so.so (/usr/local/php/lib/php/extensions/no-debug-non-zts-20170718//usr/local/php/lib/php/extensions/no-debug-non-zts-20170718/redis.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
1、检查一下extension_dir 的值
2、检查一下扩展名， .so.so 是什么东东
3、检查一下是否重复加载
扩展名就是写的.so，但是他出来成了.so.so
extension_dir 就是php7的那个目录 nodebug那个,redis.so也在那个里面
重复加载的话应该不会，这个怎么看
redis 扩展找不到
find / -name redis.so
然后设置下 extension_dir
提示：
no-debug-non-zts-20170718/redis.so.so
open shared object file: No such file or directory
估计ini里应该直接写 redis