nginx route to different php processors, you could have some php processing done by v5, some by v7 and even some by hhvm if you'd want that.. .

gistfile1.txt

    # Default is to use pool 1
    set $custom_php_pool    "1";

    # If is /admin, we use pool 2
    if ($uri ~* "^/index.php/admin/") {
        set $custom_php_pool        "2";
    }
    if ($uri ~* "^/qbonline/") {
        set $custom_php_pool        "2";
    }
    if ($uri ~* "^/api/") {
        set $custom_php_pool        "1";
    }
    if ($uri ~* "^/index.php/admin/sales_order_create/") {
        set $custom_php_pool        "1";
    }
    if ($uri ~* "^/index.php/admin/sales_order_edit/") {
        set $custom_php_pool        "1";
    }

	location ~ \.php$ {
		if ($custom_php_pool = '1') {
		fastcgi_pass unix:/var/run/php5-fpm.sock;
		}
       	if ($custom_php_pool = '2') { fastcgi_pass   127.0.0.1:9007; }
		fastcgi_index index.php;
		fastcgi_read_timeout 600;
		include fastcgi_params;

	}