#make sure to get the latest php version
sudo apt-get update
#the version for your operating system
sudo apt install php-cli
#start server
#will run http://localhost:8000/index.php , index.php in current folder
php -S localhost:8000 
#control-c to quit
#to kill stray process on a port , kill http server
fuser -k 8000/tcp

#Uncaught PDOException: could not find driver
#create <?php phpinfo(); ?> file to see
sudo nano /etc/php/8.0/cli/php.ini 
#uncomment the line extension=pdo_sqlite
#by removing the ; semi colon
[control-o] [enter] [control-x]
#Unable to load dynamic library 'pdo_sqlite'
sudo apt install php-sqlite3