How does Typecho use mysql?

My system environment is freebsd10.1 use pkg to install the nginxphp55php55-extensionsmysql56-server and configure nginx. conf enables php-fpm to load the php page, but when entering the Typecho installation page, you can only select the PDO driver sqlite without mys... my system environment is freebsd 10.1
Install nginx php55 php55-extensions mysql56-server with pkg
Nginx. conf is configured to enable php-fpm to load php pages.
However, when you enter the Typecho installation page, you can only select the PDO driver sqlite without the mysql option ..

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My system environment is freebsd 10.1
Install nginx php55 php55-extensions mysql56-server with pkg
Nginx. conf is configured to enable php-fpm to load php pages.
However, when you enter the Typecho installation page, you can only select the PDO driver sqlite without the mysql option ..