API:User::get user name

Get a user name of a user given a user id.

Calling

$api->user->get_username($user_id);

Parameters

$user_id - An integer user ID corresponding to the user ID used on artofproblemsolving.com

Returns

The user name associated with the user id.

Exceptions

AoPSAPI_Exception::MISSING_PARAMETER - Missing User ID

AoPSAPI_Exception::INVALID_PARAMETER - Invalid parameter. Triggered when there are non-numeric characters in user id parameter

AoPSAPI_Exception::INVALID_USER - User not found in Art of Problem Solving database

Example

require_once 'AoPSAPI.php';

$api = new AoPSAPI('<api_key>', '<secret_key>'); try {

   echo $api->user->get_username(1163) . "
\n";
   echo $api->user->get_username(1000000) . "
\n";
   echo $api->user->get_username(1000001) . "
\n";

} catch (AoPSAPI_Exception $ex) {

   switch ( $ex->getCode() )
   {
       case AoPSAPI_Exception::MISSING_PARAMETER:
           echo "I should never be seen since the API sends in correct parameters.
\n";
           break;
       case AoPSAPI_Exception::INVALID_PARAMETER:
           echo "Oh no, I sent in the wrong parameter " . implode(" ", $ex->getParams()) . ".
\n";
           break;
       case AoPSAPI_Exception::INVALID_USER:
           echo implode(" ", $ex->getParams()) . " is an invalid user id.
\n";
           break;
       default:
           echo $ex->getMessage() . "
\n";
           break;
   }

}

Output

rrusczyk
1000000 is an invalid user id.