title: Error in php date format conversion
body: <p>I am the following code to convert this date -> <code>18/07/2013</code> to a <code>mysql</code> supported format.</p>
  
  <pre><code>$date = date('Y-m-d', strtotime('18/07/2013'));
  </code></pre>
  
  <p>Ideally this should return <code>2013-07-18</code>...<br>
  But, the problem is that it automatically selects the string as:<br>
  <code>YEAR as YEAR</code>
  <code>MONTH as DAY</code>
  <code>DAY as MONTH</code> </p>
  
  <p>Now, because it identifies <code>18</code> as a <code>month</code>, it gets out of range and it shows the default date <code>1970-01-01</code>.</p>
  
  <p>I have wasted almost two days on this thing.</p>
  
  <p>If anyone can help, thanks in advance! </p>