php mysql extension installation

after installed php by $ sudo apt install php, we can check the php version by $php -v,  to me ,it is 7.0.

 

so in order to connect to mysql in $php -S localhost:80000, we need to install mysql extension or the program can`t connect to mysql.

 

$sudo apt install php7.0-mysql

 

so ,that`s ok, now we can run wordpress through $php -S localhost:8000