title: Convert single photo upload to multiple photo upload (with iPhone support)
body: <p>I followed a tutorial that helped me make a really basic form to allow a user to upload an image to my server (and from their mobile phone).</p>
  
  <p>I'd like to allow multiple file upload, but I'm not sure how to convert my PHP scripting.</p>
  
  <p>How can I convert the working code below for single photo upload into multiple photo upload?</p>
  
  <p>Here are the relevant portions of my code:</p>
  
  <p><strong>index.php:</strong></p>
  
  <pre><code>&lt;form action="upload.processor.php" enctype="multipart/form-data" id="upload" method="post" name="Upload"&gt;
     &lt;input id="file" name="file" type="file" accept="image/*" capture="camera" /&gt;
     &lt;input id="submit" name="submit" type="submit" value="Upload!"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p><strong>upload.processor.php:</strong></p>
  
  <pre><code>&lt;?php 
  
      // make a note of the current working directory, relative to root. 
      $directory_self = str_replace(basename($_SERVER['PHP_SELF']), '', $_SERVER['PHP_SELF']); 
  
      // make a note of the directory that will receive the uploaded file 
      $uploadsDirectory = $_SERVER['DOCUMENT_ROOT'] . $directory_self . 'img/'; 
  
      // make a note of the location of the upload form in case we need it 
      $uploadForm = 'http://' . $_SERVER['HTTP_HOST'] . $directory_self . 'index.php'; 
  
      // make a note of the location of the success page 
      $uploadSuccess = 'http://' . $_SERVER['HTTP_HOST'] . $directory_self . 'upload.success.php'; 
  
      // fieldname used within the file &lt;input&gt; of the HTML form 
      $fieldname = 'file'; 
  
      // possible PHP upload errors 
      $errors = array(1 =&gt; 'php.ini: Max file size exceeded.', 
                      2 =&gt; 'HTML form: Max file size exceeded.', 
                      3 =&gt; 'File upload was only partial.', 
                      4 =&gt; 'No file was attached.'); 
  
      // check the upload form was actually submitted else print the form 
      isset($_POST['submit']) 
          or error('The upload form is required.', $uploadForm); 
  
      // check for PHP's built-in uploading errors 
      ($_FILES[$fieldname]['error'] == 0) 
          or error($errors[$_FILES[$fieldname]['error']], $uploadForm); 
  
      // check that the file we are working on really was the subject of an HTTP upload 
      @is_uploaded_file($_FILES[$fieldname]['tmp_name']) 
          or error('Not an HTTP upload.', $uploadForm); 
  
      // validation to make sure the uploaded file is in fact an image. 
      @getimagesize($_FILES[$fieldname]['tmp_name']) 
          or error('Only image uploads are allowed!', $uploadForm); 
  
      // make a unique filename for the uploaded file and check it is not already 
      // taken... if it is already taken keep trying until we find a vacant one 
      // sample filename: 1140732936-filename.jpg 
      $now = time(); 
      while(file_exists($uploadFilename = $uploadsDirectory.$now.'-'.$_FILES[$fieldname]['name'])) { 
          $now++; 
      } 
  
      // move the file to its final location and allocate the new filename to it 
      @move_uploaded_file($_FILES[$fieldname]['tmp_name'], $uploadFilename) 
          or error('Receiving directory has incorrect permissions.', $uploadForm); 
  
  ?&gt; 
  </code></pre>