php -m报错：
PHP Warning: PHP Startup: Unable to load dynamic library 'swoole' (tried: /home/work/study/soft/php/lib/php/extensions/no-debug-non-zts-20170718/swoole (/home/work/study/soft/php/lib/php/extensions/no-debug-non-zts-20170718/swoole: cannot open shared object file: No such file or directory), /home/work/study/soft/php/lib/php/extensions/no-debug-non-zts-20170718/swoole.so (libhiredis.so.0.13: cannot open shared object file: No such file or directory)) in Unknown on line 0
解决方案：
用vi打开当前用户的bash_profile
vi ~/.bash_profile
在最后一行添加： export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
最后再 source ~/.bash_profile