title: PHP Strtotime -1month -2month
body: <p>This was working fine yesterday with no changes to the code.</p>
  
  <pre><code>echo date("M", strtotime("-3 month", time()) );
  echo date("M", strtotime("-2 month", time()) );
  echo date("M", strtotime("-1 month", time()) );
  echo date("M", time());
  </code></pre>
  
  <p>The output it was producing yesterday was as you would expect- i.e. Apr, May, Jun, Jul</p>
  
  <p>Today it echoes May May Jul Jul</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks in advance.</p>