Multiple Image Uploader Using MongoDB To Store Image Paths

upload-form.php

            <form name="newad" method="post" enctype="multipart/form-data"  action="uploader.php">
                <br/>
                <label for="file">Image 1:</label>
                <input type="file" name="file" id="file" />
                
                <label for="file">Image 2:</label>
                <input type="file" name="file2" id="file2" />

                <label for="file">Image 3:</label>
                <input type="file" name="file3" id="file3" />
                
                <label for="file">Image 4:</label>
                <input type="file" name="file4" id="file4" />
                <br/><br/>
                <input type="submit" class='upload-button' name="submit" value="Upload" />  
            </form>
        <br/><br/>
        
                <?php
        if($successfulUpload == 1){
            echo "Successfully Uploaded!";
        }else{
        }?>

uploader.php

<?php
     /* Demonstrates how to upload multiple images using PHP and insert the
     * image path and a unique ID into a MongoDB database
     * http://www.fusionstrike.com
     */

	$m = new Mongo();
	$db = $m->thundergallery; //Change to your database
	$collection = $db->images; //Change to your collection
	$cursor = $collection->find();
        $upload_dir = "../uploads/"; //Specified the upload directory
        
        
        if(isset($_POST['submit'])){ //Checks if the upload form has been submitted, if so, continue
        
        $arr = array($_FILES["file"], $_FILES["file2"], $_FILES["file3"], $_FILES["file4"], $_POST['height'], $_POST['width'] ); //Begins the array for the file uploads
            foreach ($arr as &$value) {
                
                if ($value["error"] > 0){
                    //Error uploading the file, script stops here
                }else{
                    
                if (file_exists($upload_dir . $value["name"])){
                    //Error uploading the file, a file with the same name already exists, script stops here
                  } else {
                  move_uploaded_file($value["tmp_name"], $upload_dir. $value["name"]);
                    $successful = 1; //Sets the upload flag to 1, will display sucsess message below upload form      
              
                    $url = "/uploads/" . $value["name"]; //Places the Upload Path into the URL varliable
                    $unique_id = "content".rand(); //Generates a random ID and stores in within the unique_id variable
                    
                    $obj = array( "url" => $url, "unique_id" => $unique_id, "height" => $height, "width" => $width ); //Adds the URL and Random ID to Mongo
                    $collection->insert($obj);
                    
                  }
                }

        } //Ends the array
        unset($value); //Unsets the value variable from the array

         }else{
            //If the submit form is not submitted, do nothing
            }


 ?>

hello

It's awesome work,now i am trying to show image in browser using image _id but i can't fetch/show image in browser.

Thanks.