title: PHP setting input values with isset
body: <p>I was wondering if there is a shorter way of writing the following code:</p>
  
  <pre><code>&lt;input type="text" name="username" value="&lt;?if(isset($_POST['username'])){ echo $_POST['username']; }?&gt;" /&gt;
  </code></pre>
  
  <p>I hate having to do this will all my forms as the isset() check really messes up my HTML and scares away the frontenders.</p>