Go to /usr/local/directadmin/custombuild/

2. Edit options.conf

3. Change below config to :

#PHP Settings
php1_release=7.2
php1_mode=php-fpm
php2_release=7.1
php2_mode=php-fpm

Proceed to compile the PHP version via :‌

./build php‌

4. In this guide, the new PHP version is PHP71, therefore we go to directory:‌

/usr/local/php71/etc/php-fpm.d‌

5. Edit Domain config, at the bottom of the config, change :‌

security.limit_extensions = .php .php5 .php71 .inc .phtml‌

6. After we compile new PHP, the main PHP-FPM config will change automatically, you can edit both PHP-FPM config so it use our previous configs :‌

1. /usr/local/php71/etc/php-fpm.conf
2. /usr/local/php72/etc/php-fpm.conf

‌

7. Make sure the PHP-FPM config is changed as below at the bottom of the config : (This example is for PHP 71, change the php version accordingly for each PHP version)

; Load all DA User configs
include=/usr/local/php71/etc/php-fpm.d/*.conf

8. Last step is, change the individual main HTTPD config to it’s PHP71 version’s socket.

<FilesMatch \.php$>        
SetHandler"proxy:unix:/usr/local/php71/sockets/apio2ocon.sock|fcgi://localhost/"    
</FilesMatch>

Make sure to change both HTTP and HTTPS.‌

9. Check httpd config before restarting the service :

httpd -t

10. If it returns OK, restart all below services :

killall -HUP httpd
systemctl restart php-fpm72
systemctl restart php-fpm71

11. To verify , create PHPINFO file in the domain root directory with content below :

<?php phpinfo(); ?>