title: Convert a unix timestamp to a human readable date in PHP?
body: <p>I have a timestamp value from PHP: <code>1188604800000</code></p>
  
  <p>When I format the time to human readable like this:</p>
  
  <pre><code>date("m/d/Y", 1188604800000)
  </code></pre>
  
  <p>It prints:</p>
  
  <pre><code>05/21/39635
  </code></pre>
  
  <p>If I put the number into an online Unix Timestamp converter I get:</p>
  
  <pre><code>Sat, 01 Sep 2007 00:00:00 GMT
  </code></pre>
  
  <p>What am I doing wrong?</p>