<?php // the below json header doesn't work, I don't know why // header("Content-type: application/json"); // the return type must be text/html, if not a dialog to download the php backend script (yui_image_uploader.php) appears header("Content-type: text/html"); try { // if the file has been sent successfully and that file is a image, then store the image in the server if ($_FILES['picture']['error'] == UPLOAD_ERR_OK) { $file_type = basename($_FILES['picture']['type']); switch ($file_type) { case 'jpeg': case 'pjpeg': $filename = 'yui.jpg'; break; default: throw new Exception('The uploaded file is not a JPEG image'); break; } // set the directory in the server where I want to store the uploaded image $images_directory = 'images/'; $uploadpath = $images_directory . $filename; // upload the image if (move_uploaded_file($_FILES['picture']['tmp_name'], $uploadpath)) { echo json_encode(array('status'=>'UPLOADED', 'image_url'=>$uploadpath)); } else { throw new Exception('Possible file upload attack'); } } else { throw new Exception('Problem trying to upload the file'); } } catch (Exception $e) { $status = $e->getMessage(); echo json_encode(array('status'=>$status)); } ?>