title: yourls api is executing url before shorting
body: <p>I have installed YOURLS API and its working fine except one problem. Whatever URL I am passing to shorten, its first executing that URL. One of the links is un-subscribe link clicking on which instantly it un-subscribe the member from our mailer. I am using passwordless API call with security token and I am calling <code>yourls-api.php</code> file by <code>file_get_contents</code> function. Here is the code snippet I have written:</p>
  
  <pre><code>$url = urlencode($url);
  $api_url = 'http://mydomain.com/yourls/yourls-api.php?signature=593642y63x&amp;action=shorturl&amp;format=json&amp;url='.$url;
  $arr_output = json_decode(file_get_contents($api_url), true);   
  </code></pre>
  
  <p>Can anybody tell me how can I stop YOURLS API to not execute URL before shortening?</p>