title: how to convert date in excel to sql format using php?
body: <p>I read the date from excel using php and convert to sql format using following code </p>
  
  <pre><code>$date = date('Y-m-d', strtotime($cell));
  </code></pre>
  
  <p>but after convertion the date is not correct.
  how to solve this problem? </p>