How to check if PHP version is active or not in Plesk?

Connect to the server via SSH.

Execute the following command to get the list of active PHP versions (they have the enabled value at the end):

# plesk bin php_handler --list | grep enabled

plesk-php72-fastcgi 7.2.6 7.2.6 7.2 fastcgi /opt/plesk/php/7.2/bin/php-cgi /opt/plesk/php/7.2/bin/php /opt/plesk/php/7.2/etc/php.ini true enabled

plesk-php72-fpm 7.2.6 7.2.6 7.2 fpm /opt/plesk/php/7.2/sbin/php-fpm /opt/plesk/php/7.2/bin/php /opt/plesk/php/7.2/etc/php.ini true enabled

Execute the next command to get the list of inactive PHP versions (they have the disabled value at the end):

# plesk bin php_handler --list | grep disabled

cgi 5.4.16 by OS vendor 5.4.16 5.4 cgi /usr/bin/php-cgi /usr/bin/php /etc/php.ini false disabled
<...>
plesk-php72-cgi 7.2.6 7.2.6 7.2 cgi /opt/plesk/php/7.2/bin/php-cgi /opt/plesk/php/7.2/bin/php /opt/plesk/php/7.2/etc/php.ini true disabled