protected static function connect($host, $port = 21, $timeout = self::FTP_TIMEOUT)
{
self::_resetError();
$err_no = 0;
$err_msg = '';
self::$controlSocket = @fsockopen($host, $port, $err_no, $err_msg, $timeout) or self::_setError(-1, 'fsockopen failed');
if ($err_no != 0) {
self::_setError($err_no, $err_msg);
}
if (self::_isError()) {
return false;
}
@socket_set_timeout(self::$controlSocket, $timeout) or self::_setError(-1, 'socket_set_timeout failed');
if (self::_isError()) {
return false;
}
self::_waitForResult();
if (self::_isError()) {
return false;
}
return self::getLastResult() == self::FTP_SERVICE_READY;
}
