$string = "level=2&pass=pwd&form-id=user_login&op=Log in";
$string_length= length($string);
$curl->setopt( CURLOPT_POSTFIELDS, "$string" );
$curl->setopt( CURLOPT_POSTFIELDSIZE, $length );
$curl->setopt( CURLOPT_POST, 1 );
$curl->setopt( CURLOPT_CONNECTTIMEOUT,8);