也许，在您的 php.ini 中的某个地方，您包含重复的pdo扩展名.打开您的 php.ini 并搜索 extension ="pdo.so" (或简称为 pdo.so ).删除找到的所有重复项.重新启动apache.

Maybe, somewhere in your php.ini you have a duplicated pdo extension inclusion. Open your php.ini and search for extension = "pdo.so" (or simply pdo.so). Remove any duplication found. Restart apache.