uploading screenshot to server

Your upload url doesn't look like there's anything on your server that can receive the upload? Do you have a serverside php script that saves the upload? It seems you forget that...

To take a screenshot and upload it there's an example in the Unity docs.

Here's a similar question where you can see how the serverside script can look like:
http://answers.unity3d.com/questions/48686/uploading-photo-and-video-on-a-web-server.html

Unityscript:

 var screenShotURL= "http://localhost:8888/upload_file.php";

 function Start(){ 
     //print(Application.srcPath); 
 }

 function OnMouseDown() { 

     // We should only read the screen after all rendering is complete yield WaitForEndOfFrame();

     // Create a texture the size of the screen, RGB24 format
     var width = Screen.width;
     var height = Screen.height;
     var tex = new Texture2D( width, height, TextureFormat.RGB24, false );
     // Read screen contents into the texture
     tex.ReadPixels( Rect(0, 0, width, height), 0, 0 );
     tex.Apply();

     // Encode texture into PNG
     var bytes = tex.EncodeToPNG();
     Destroy( tex );

     // Create a Web Form
     var form = new WWWForm();
     form.AddField("frameCount", Time.frameCount.ToString());
     form.AddBinaryData("file", bytes, "screenShot.png", "image/png");

     // Upload to a cgi script    
     var w = WWW(screenShotURL, form);
     yield w;
     if (w.error != null){
         print(w.error);
         Application.ExternalCall( "debug", w.error);
         //print(screenShotURL);
     }  
     else{
         print("Finished Uploading Screenshot");
         //print(screenShotURL);
         Application.ExternalCall( "debug", "Finished Uploading Screenshot");
     }
 }

PHP:

 <?php 
     if ((($_FILES["file"]["type"] == "image/gif") || ($_FILES["file"]["type"] == "image/jpeg") || ($_FILES["file"]["type"] == "image/pjpeg")) && ($_FILES["file"]["size"] < 20000000000)) { if ($_FILES["file"]["error"] > 0) { echo "Return Code: " . $_FILES["file"]["error"] . "
     "; } else { echo "Upload: " . $_FILES["file"]["name"] . "
     "; echo "Type: " . $_FILES["file"]["type"] . "
     "; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
     "; echo "Temp file: " . $_FILES["file"]["tmp_name"] . "
     ";

     if (file_exists("upload/" . $_FILES["file"]["name"]))
       {
       echo $_FILES["file"]["name"] . " already exists. ";
       }
     else
       {
       move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]);
       echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
       }
     }
     } else { echo "Invalid file"; } 
 ?>

I don't know why but it doesn't work yet. I am using this javascript

 var screenShotURL= "http://localhost:8888/upload_file.php";

//var screenShotURL= "http://195.130.124.68/cgi-bin/screenshot.pl";

function Start(){ //print(Application.srcPath); }

function OnMouseDown() { // We should only read the screen after all rendering is complete yield WaitForEndOfFrame();

 // Create a texture the size of the screen, RGB24 format
 var width = Screen.width;
 var height = Screen.height;
 var tex = new Texture2D( width, height, TextureFormat.RGB24, false );
 // Read screen contents into the texture
 tex.ReadPixels( Rect(0, 0, width, height), 0, 0 );
 tex.Apply();

 // Encode texture into PNG
 var bytes = tex.EncodeToPNG();
 Destroy( tex );

 // Create a Web Form
 var form = new WWWForm();
 form.AddField("frameCount", Time.frameCount.ToString());
 form.AddBinaryData("fileUpload", bytes, "screenShot.png", "image/png");

 // Upload to a cgi script    
 var w = WWW(screenShotURL, form);
 yield w;
 if (w.error != null){
     print(w.error);
     Application.ExternalCall( "debug", w.error);
     //print(screenShotURL);
 }  
 else{
     print("Finished Uploading Screenshot");
     //print(screenShotURL);
     Application.ExternalCall( "debug", "Finished Uploading Screenshot");
 }

}

and this php script

0) { echo "Return Code: " . $_FILES["file"]["error"] . "
"; } else { echo "Upload: " . $_FILES["file"]["name"] . "
"; echo "Type: " . $_FILES["file"]["type"] . "
"; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
"; echo "Temp file: " . $_FILES["file"]["tmp_name"] . "
";

 if (file_exists("upload/" . $_FILES["file"]["name"]))
   {
   echo $_FILES["file"]["name"] . " already exists. ";
   }
 else
   {
   move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]);
   echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
   }
 }

} else { echo "Invalid file"; } ?>

The program sais that the image uploaded... but there is no image inside the upload folder. Is there any wrong with the scripts? Do I want any other script in order to upload the screenshot???

Thanks again!