Nginx Config for phpldapadmin

phpldapadmin.conf

server {
    listen 80;

    server_name localhost;

    # application: phpldapadmin
    location /phpldapadmin {
        alias /usr/share/phpldapadmin/htdocs;
        index index.php index.html index.htm;

        location ~ ^/phpldapadmin/(.+\.php)$ {
            try_files $uri =404;
            root /usr/share/;
            if ($request_filename !~* htdocs) {
                rewrite ^/phpldapadmin(/.*)?$ /phpldapadmin/htdocs$1;
            }
            fastcgi_pass unix:/var/run/php/php7.1-fpm.sock;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include /etc/nginx/fastcgi_params;
        }
    }
}

GET /phpldapadmin/index.php HTTP/1.1" 302 ,Unlimited occurrences of redirects