title: php combining url with variable
body: <p>I want to do define the following variable $url</p>
  
  <pre><code>$url = www.example.com/$link;
  </code></pre>
  
  <p>where $link is another predefined variable text string e.g. testpage.php</p>
  
  <p>But the above doesn't work, how do I correct the syntax?</p>
  
  <p>Thanks</p>