title: Sublime Text 3 custom PHP auto-completion does not work
body: <p>Here's the default auto-completion for "switch":</p>
  
  <pre><code>switch (variable) {
  case 'value':
      # code...
      break;
  
  default:
      # code...
      break;
  }
  </code></pre>
  
  <p>but I wish to turn it into just:</p>
  
  <pre><code>switch ()
  {
      case '':
  
      break;
  
      case '':
  
      break;
  }
  </code></pre>
  
  <p>because I don't like to modify "#code here..." every time.</p>
  
  <p>I navigated to </p>
  
  <blockquote>
    <p>"C:\Users\USER\AppData\Roaming\Sublime Text 2\Packages\PHP" </p>
  </blockquote>
  
  <p>and opened "switch(-).sublime-snippet" and modified it into:</p>
  
  <pre><code>&lt;snippet&gt;
  &lt;content&gt;&lt;![CDATA[switch ($0)
  {
  case '$0':
  
      break;
  
  case '$0':
  
      break;
  }]]&gt;&lt;/content&gt;
  &lt;tabTrigger&gt;switch&lt;/tabTrigger&gt;
  &lt;scope&gt;source.php&lt;/scope&gt;
  &lt;description&gt;switch …&lt;/description&gt;
  </code></pre>
  
  <p></p>
  
  <p>But nothing works.
  Is there any syntax error?<br>  Or do I modify the wrong file?</p>