'; // URL to shrink $format = 'simple'; // output format: 'json', 'xml' or 'simple' // EDIT THIS: the URL of the API file $api_url = 'http://ersatz.xyz/yourls-api.php'; // Init the CURL session $ch = curl_init(); curl_setopt( $ch, CURLOPT_URL, $api_url ); curl_setopt( $ch, CURLOPT_HEADER, 0 ); // No header in the result curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true ); // Return, do not echo result curl_setopt( $ch, CURLOPT_POST, 1 ); // This is a POST request curl_setopt( $ch, CURLOPT_POSTFIELDS, array( // Data to POST 'url' => $url, 'format' => $format, 'action' => 'shorturl', 'signature' => $signature, ) ); // Fetch and return content $data = curl_exec($ch); curl_close($ch); // Do something with the result. Here, we just echo it. echo $data;