#check version first
php --version
#status
service php7.4-fpm status
#restart
service php7.4-fpm restart
#reload
service php7.4-fpm reload
#force-reload
service php7.4-fpm force-reload
#start
service php7.4-fpm start
#stop
service php7.4-fpm stop
#or
/etc/init.d/php7.4-fpm restart