title: mktime is not working for years greater than 2038
body: <p>I am using php version 5.3.8
  And mktime is not working for me</p>
  
  <p>here is the code</p>
  
  <pre><code>$dated= mktime(0,0,0,11,5,2038);
  var_dump($dated);
  </code></pre>
  
  <p>Output is as bool(false) 
  Please suggest me its fix</p>