title: unable to move files to network share folder
body: <p>I am trying to upload files into the shared folder, I have permission to read/write inside that folder (i can create a folder inside my shared folder). but when I submit the form I am always getting these warnings. I am using xampp local server</p>
  <blockquote>
  <p>Warning: move_uploaded_file(\17.105.103.8\History\TQ_Books\1.PDF):
  failed to open stream: Invalid argument in
  C:\xampp\htdocs\bookshelfs\app\controllers\Books.php on line 144</p>
  <p>Warning: move_uploaded_file(): Unable to move 'C:\xampp\tmp\php10D7.tmp' to '\17.105.103.8\History\TQ_Books\1.PDF' in C:\xampp\htdocs\bookshelfs\app\controllers\Books.php on line 144</p>
  </blockquote>
  <p>This is my code</p>
  <pre><code>$bookExt = pathinfo($_FILES['select_book']['name'], PATHINFO_EXTENSION);
  $filename = ltrim($_POST['book_no'], '0') . '.' . $bookExt;
  $tmpFilename = $_FILES['select_book']['tmp_name'];
  $targetDir = '\\\\17.105.103.8\\History\\TQ_Books\\';
  $fileTarget = $targetDir . $filename;
  
  if (move_uploaded_file($tmpFilename, $fileTarget)) {
       die(&quot;success, uploaded&quot;);
  } else {
       die(&quot;not uploaded&quot;);
  }
  </code></pre>
  <p><strong>UPDATE</strong>
  I checked file path by file_exists method it gives not exists and also checked with is_writeable method it gives false too</p>