| Requirement      |                        Minimum                        |                                                                                   Recommended                                                                                    |
|------------------|:-----------------------------------------------------:|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
| PHP Version      |                         5.6.0                         |                                                       [Latest stable release](https://www.php.net/supported-versions.php)                                                        |
| PHP Extensions   | [iconv](https://www.php.net/manual/en/book.iconv.php) | [iconv](https://www.php.net/manual/en/book.iconv.php),<br> [mbstring](https://www.php.net/manual/en/book.mbstring.php), <br> [cURL](https://www.php.net/manual/en/book.curl.php) |
| PHP INI Settings |                          ---                          |                                    [allow_url_fopen = On](https://www.php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen) **                                     |

** This is only necessary if cURL is not available.