Error with R63 Client!!! Please help! :[

[O3O]

So..I've followed everything on the TUT, after clicking "ENTER HABBO HOTEL", this window shows up: Fatal error: Call to undefined function curl_init() in C:\xampp\htdocs\thehabbos_api\class.validate.php on line 33

And if I go straight to localhost/client its just a black screen, even though i've updated my webbuild. I need help ASAP! ;[

Thanks in advance,
o3o

[MentaL]

[TimmXD]

Don't use api.php just edit all the pages to make it client.php so that doesn't occur. what I mean is so when they client enter hotel they get redirected to client.php (:

[O3O]

Edit** If I go straight to localhost/client, not localhost/php ..

[Marceline]

Edit** If I go straight to localhost/client, not localhost/php ..

May i please see your external_variables and the links of them.
I think that's the problem.