title: PHP - strtotime, specify timezone
body: <p>I have a date string, say '<code>2008-09-11</code>'. I want to get a timestamp out of this, but I need to specify a timezone dynamically (rather then PHP default). </p>
  
  <p>So to recap, I have two strings:</p>
  
  <pre><code>$dateStr = '2008-09-11';
  $timezone = 'Americas/New_York';
  </code></pre>
  
  <p>How do I get the timestamp for this?</p>
  
  <p>EDIT: The time of day will be the midnight of that day.... $dateStr = '2008-09-11 00:00:00';</p>