Resolution1. Create a file with the following content:
and then save it into the %plesk_vhosts%/domain.tld/httpdocs folder as 1.php (the name may be different, only .php should be existed)
2. Open the file via browser:
(the domain name should be resolved at least locally)
Note! The PHP support should be enabled for the domain.
On the page the standard PHP diagnostic table should be existed.