title: debug and inspect $_POST
body: <p>Lets say that i have 2 pages: index.php and service.php</p>
  
  <p>index.php sends an http-post to service.php, containing a datestamp once every 5th minute.</p>
  
  <p>How would i debug the post variables on service.php? Obviously i cant just do a </p>
  
  <pre><code>if(isset($_POST['key'])) { 
      var_dump($_POST['key']); 
  } 
  </code></pre>
  
  <p>since it wont exist when i enter the page. </p>
  
  <p>In ASP.NET i would just create a breakpoint, but how would i inspect the posted data in php?</p>
  
  <p>Thanks</p>