I'm trying to set
PATH = /usr/local/bin:/usr/bin:/bin
security.limit_extensions = .php .php3 .php4 .php5 .xml
If I enter this in the subdomains PHP Settings in Plesk, the according file in /etc/php5/fpm/pool.d is changed like this:
php_value[PATH] = /usr/local/bin:/usr/bin:/bin...