title: Curl class in codeIgniter 3.0
body: <p>I'm a beginner in Codeigniter.I use CI 3.0 (last version).I wanna use recaptch in my code.When I search in google for curl class in codeigniter I find this code </p>
  
  <pre><code>$this-&gt;load-&gt;library('curl');
  </code></pre>
  
  <p>but when I use this in my code </p>
  
  <blockquote>
    <p>Unable to load the requested class: Curl</p>
  </blockquote>
  
  <p>and reality there isn't this class. 
  Can anybody help me pleas?
  Thanks.</p>