php - c# http post data with parameters and save it to mysql -

i use code in c# app post data:

    void postdata()     {         webclient wc = new webclient();         var uri = new uri("http://my-real-address.com/test.php");         string myparameter = "?parameter=test";         wc.headers["content-type"] = "application/x-www-form-urlencoded";         wc.uploadstringcompleted += new uploadstringcompletedeventhandler(wc__uploadstringcompleted);         wc.uploadstringasync(uri, myparameter);     }      void wc__uploadstringcompleted(object sender, uploadstringcompletedeventargs e)     {         try         {             messagebox.show(e.result);         }         catch (exception exc)         {             messagebox.show(exc.tostring());         }     } 

and content of test.php:

<?php $save = $_get['parameter'];  //db auth settings $dbhost = 'localhost'; $dbuser = 'user'; $dbpass = 'password';  if ($save != "") {     $conn = mysql_connect($dbhost, $dbuser, $dbpass);     if(! $conn )     {         die('could not connect: ' . mysql_error());     }     $sql = "insert users (parameter) values ('$save')";     mysql_select_db('database');     $retval = mysql_query( $sql, $conn );     if(! $retval )     {         die( mysql_error() );     }     mysql_close($conn); } ?> 

i don't know why c# app open messagebox without text , data not stored in mysql database. if , open same url parameters in web browser works great.

i not sure if: string myparameter = "?parameter=test" correct tried chaning to: string myparameter = "parameter=test" same results.

any idea?

you passing parameter, not uri-extension. rid of question-mark.

void postdata()     {         webclient wc = new webclient();         var uri = new uri("http://my-real-address.com/test.php");         //string myparameter = "?parameter=test";         string myparameter = "parameter=test";    // <---------- !         wc.headers["content-type"] = "application/x-www-form-urlencoded";         wc.uploadstringcompleted += new uploadstringcompletedeventhandler(wc__uploadstringcompleted);         wc.uploadstringasync(uri, myparameter);     } 

everything else looks me.