title: How to search multiple files of specific file type within Sublime Text 3
body: <p>I would like to search for a string within all *.php files in a certain directory (and its sub-directories) using the Shift + Ctrl + F search dialog.</p>
  
  <p>My guess was to set the search location to:</p>
  
  <pre><code>c:\example\*.php
  </code></pre>
  
  <p>but that gives an error:</p>
  
  <pre><code>Unable to open c:\example\*.php
  </code></pre>
  
  <p>Is there a way to perform the search I'm hoping to perform?</p>