Simple SAML PHP configuration, to incluse SimpleSAMLPHP as part of your domain.com/simplesaml

simplesaml.conf

{
    listen 80;
    server_name  mydomain.com;

    location ^~ /simplesaml {
        alias /var/simplesamlphp/www;

        location ~ ^(?<prefix>/simplesaml)(?<phpfile>.+?\.php)(?<pathinfo>/.*)?$ {
            include fastcgi_params;
            fastcgi_pass unix:/var/run/php/php5.6-fpm.sock;
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$phpfile;

            # Must be prepended with the baseurlpath
            fastcgi_param SCRIPT_NAME /simplesaml$phpfile;

            fastcgi_param PATH_INFO $pathinfo if_not_empty;
        }
    }
}