/**
* Get a hash of your server
*
* If you happen to have multiple installations of frapi
* you would get apc cache collisions if we woulnd't have
* some sort of hashing and identification of the hostnames.
*
* Right now this hash is very rudimentary, it's simply and sha1
* hash of the HTTP_HOST that you are serving frapi from.
*
* @return string self::$_hash The sha1-server hash
*/
public static function getHash()
{
if (self::$_hash) {
return self::$_hash;
}
$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '';
self::$_hash = hash('sha1', $host);
return self::$_hash;
}