Requirements check 
All of the items that are checked below, are required for proper installation and operation of Wolf CMS unless otherwise specified in the footnotes.
Please make sure you either have: MySQL 4.1.x upwards, SQLite 3 or PostgreSQL available as a database.
| Requirement | Available? |
|---|---|
| PHP 5.1.2 | PHP 5.2.17 |
| PDO supported | true |
| PDO supports MySQL 1) | true |
| PDO supports SQLite 3 1) | true |
| PDO supports PostgreSQL 1) | false |
| Config file exists 2) | true |
| Config file is writable 2) | true |
| Public directory is writable 3) | true |
| Clean URLs support available 4) | not detected |
1) - Only one database has to be supported by PDO.
If you use MySQL, you don't need a SQLite or PostgreSQL driver and visa versa.
2) - "config.php" at install root.
3) - "public" at install root.
4) - If "clean urls support available" says "not detected", make sure you have renamed the _.htaccess file into .htaccess. You only need clean URLs support if you want to remove the question mark from the URLs. (mod_rewrite)