开启pdo弹出错误

1. [07-Jun-2018 12:21:32] NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library '/www/server/php/56/lib/php/extensions/no-debug-non-zts-20131226/php_pdo_mysql.dll' - /www/server/php/56/lib/php/extensions/no-debug-non-zts-20131226/php_pdo_mysql.dll: cannot open shared object file: No such file or directory in Unknown on line 0
   
2. [07-Jun-2018 12:21:32] NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library '/www/server/php/56/lib/php/extensions/no-debug-non-zts-20131226/php_sockets.dll' - /www/server/php/56/lib/php/extensions/no-debug-non-zts-20131226/php_sockets.dll: cannot open shared object file: No such file or directory in Unknown on line 0

复制代码

手动修改php.ini 开启Pdo弹出这个

请问是什么原因？

无法加载pdo动态库，确定安装了吗？

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