kill all php, nginx, mysql or any kind of processes

Important: This should be used in case of emergency only. 

Just one line…

To kill all PHP Processes

kill $(ps aux | grep '[p]hp' | awk '{print $2}')

To kill all Nginx Processes

kill $(ps aux | grep '[n]ginx' | awk '{print $2}')

To kill all MySQL Processes

kill $(ps aux | grep '[m]ysql' | awk '{print $2}')

You can kill any other type of processes as well. Just make sure you replace [p]hp with name of that process. Remember to keep first letter in bracket.