[CutX]

i dont know about that as i didnt went so far with testing...
but you don't need to connect it with ftp, you just need the right URL (to your php file or a text file, when youre just reading)

you can "code" some security if you want
just a example:

PHP код:

<?php
error_reporting(0);
if(!isset($_GET['passCode']))
{
echo "Fail!";
exit;
}
else if($_GET['passCode'] != "-MY564!!Pass4yyyY'Word-")
{
echo "Error 406: NOT Acceptable!";
exit;
}
echo "continue the code, password was correct";
?>

here you send the "passCode" you set in your script.
so it's like a password.

or the other way when you've cahnged the User Agent of your server,
just check $_SERVER['HTTP_USER_AGENT']; instead of "passCode"

default User Agent is SAMP 0.3 or so, cant remember