* Apache with mod-rewrite enabled and "Options All" so you can use a local .htaccess file
* PHP 5.6+ (PHP 7 is recommended for performance)
* PHP *command line* access with register_argc_argv set to true in the php.ini file
-* Curl, GD, PDO, MySQLi, hash, xml and OpenSSL extensions
+* Curl, GD, PDO, MySQLi, hash, xml, zip and OpenSSL extensions
* some form of email server or email gateway such that PHP mail() works
* Mysql 5.5.3+ or an equivalant alternative for MySQL (MariaDB, Percona Server etc.)
* the ability to schedule jobs with cron (Linux/Mac) or Scheduled Tasks (Windows) (Note: other options are presented in Section 7 of this document.)