title: Call to undefined function curl_init()
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/4477535/curl-init-function-not-working">curl_init() function not working</a>  </p>
  </blockquote>
  
  
  
  <p>I am using PHP for accessing the Foursquare API. I have set up everything for the authentication with Foursquare. But as soon as I click on the "Allow" button, my callback.php gives me the following error:</p>
  
  <pre><code>Fatal error: Call to undefined function curl_init() in C:\wamp\www\EpiFoursquare.php on line 119
  
  Call Stack
  
  Time    Memory  Function                          Location
  0.0007  372592  {main}( )                         ..\callback.php:0
  0.0039  571896  EpiFoursquare-&gt;getAccessToken( )  ..\callback.php:17
  0.0040  572928  EpiFoursquare-&gt;request( )         ..\EpiFoursquare.php:31
  </code></pre>
  
  <p>Where does this error come from? I cannot find the origin. Please help me out.</p>