diff --git a/README.md b/README.md
index a86017f..461ecb3 100644
--- a/README.md
+++ b/README.md
@@ -201,7 +201,7 @@ Curl::error($callback)
 Curl::exec($ch = null)
 Curl::get($url, $data = array())
 Curl::getCookie($key)
-Curl::getInfo($opt)
+Curl::getInfo($opt = null)
 Curl::getOpt($option)
 Curl::getResponseCookie($key)
 Curl::head($url, $data = array())
diff --git a/src/Curl/Curl.php b/src/Curl/Curl.php
index a8e31a5..47c4914 100644
--- a/src/Curl/Curl.php
+++ b/src/Curl/Curl.php
@@ -422,9 +422,16 @@ class Curl
      *
      * @return mixed
      */
-    public function getInfo($opt)
+    public function getInfo($opt = null)
     {
-        return curl_getinfo($this->curl, $opt);
+        $args = array();
+        $args[] = $this->curl;
+
+        if (func_num_args()) {
+            $args[] = $opt;
+        }
+
+        return call_user_func_array('curl_getinfo', $args);
     }
 
     /**
diff --git a/tests/PHPCurlClass/PHPCurlClassTest.php b/tests/PHPCurlClass/PHPCurlClassTest.php
index ec7d81e..0ee82a6 100644
--- a/tests/PHPCurlClass/PHPCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPCurlClassTest.php
@@ -3000,4 +3000,61 @@ class CurlTest extends PHPUnit_Framework_TestCase
         $curl->get(Test::TEST_URL, $data);
         $this->assertEquals('', $curl->response);
     }
+
+    public function testGetInfo()
+    {
+        $test = new Test();
+        $test->server('server', 'GET');
+        $info = $test->curl->getInfo();
+
+        $expected_keys = array(
+            'url',
+            'content_type',
+            'http_code',
+            'header_size',
+            'request_size',
+            'filetime',
+            'ssl_verify_result',
+            'redirect_count',
+            'total_time',
+            'namelookup_time',
+            'connect_time',
+            'pretransfer_time',
+            'size_upload',
+            'size_download',
+            'speed_download',
+            'speed_upload',
+            'download_content_length',
+            'upload_content_length',
+            'starttransfer_time',
+            'redirect_time',
+            'certinfo',
+            'primary_ip',
+            'primary_port',
+            'local_ip',
+            'local_port',
+            'redirect_url',
+            'request_header',
+        );
+
+        // Not all keys are included on PHP 5.3 (tested 5.3.29).
+        if (version_compare(PHP_VERSION, '5.4.0', '<')) {
+            foreach (array('primary_ip', 'primary_port', 'local_ip', 'local_port') as $value) {
+                $key = array_search($value, $expected_keys);
+                unset($expected_keys[$key]);
+            }
+        }
+
+        // Not all keys are included on HHVM (tested 3.6.6).
+        if (defined('HHVM_VERSION')) {
+            foreach (array('certinfo', 'primary_ip', 'primary_port', 'local_ip', 'redirect_url') as $value) {
+                $key = array_search($value, $expected_keys);
+                unset($expected_keys[$key]);
+            }
+        }
+
+        foreach ($expected_keys as $key) {
+            $this->assertArrayHasKey($key, $info);
+        }
+    }
 }