Unknown Curl error

Hey i got small problem getting an unknown curl error from my script "curl_error(): 180 is not a valid cURL handle resource". Im not able to find any recourses about that error so maybe anyone has any experience with this.

Thanks already.

Heres the part which causes the error and exact log: PHP Warning: curl_error(): 180 is not a valid cURL handle resource on

if(curl_error($ch))  
{  
    curl_close($ch);  
    $resp = curl_error($ch); // Thats the line causing the error  
    error_log(date('Y M D h:s:m '). ":  $current error:  "  .curl_error($ch)."\n", 3, '../../usererrors/'.$username.'errors');  
    return $resp;  
}  

From stackoverflow

• I must admit that the error was caused by calling curl_close before curl_error. So case closed hope someone got some help from this as well :)