diff --git a/circle.yml b/circle.yml
index 513e43b0a..9dc4dd7b0 100644
--- a/circle.yml
+++ b/circle.yml
@@ -2,15 +2,21 @@ machine:
   php:
     version: 5.6.17
   services:
+      - redis
       - docker
 dependencies:
   pre:
+    - yes '' | pecl install -f apcu-4.0.10
+    - echo "extension=apcu.so" | sudo tee -a /opt/circleci/php/$(phpenv global)/etc/php.ini
     - docker pull php
     - docker pull nyanpass/php5.5
 
 test:
   override:
     - vendor/bin/phpunit tests --coverage-text
+    - ln -s vendor integration-tests/vendor
+    - vendor/bin/phpunit integration-tests/LDDFeatureRequesterTest.php
+
     - composer update && vendor/bin/phpunit tests
     - composer update --prefer-lowest && vendor/bin/phpunit tests
 
diff --git a/integration-tests/LDDFeatureRequesterTest.php b/integration-tests/LDDFeatureRequesterTest.php
index 602b87717..883f56e0d 100644
--- a/integration-tests/LDDFeatureRequesterTest.php
+++ b/integration-tests/LDDFeatureRequesterTest.php
@@ -3,6 +3,8 @@
 
 require_once 'vendor/autoload.php';
 
+use LaunchDarkly\ApcLDDFeatureRequester;
+use LaunchDarkly\ApcuLDDFeatureRequester;
 use LaunchDarkly\LDClient;
 use LaunchDarkly\LDUserBuilder;
 
@@ -28,7 +30,8 @@ public function testGetApc() {
                                         "scheme" => "tcp",
                                         "host" => 'localhost',
                                         "port" => 6379));
-        $client = new LDClient("BOGUS_API_KEY", array('feature_requester_class' => '\\LaunchDarkly\\ApcLDDFeatureRequester',
+        $client = new LDClient("BOGUS_API_KEY", array(
+            'feature_requester_class' => extension_loaded('apcu') ? ApcuLDDFeatureRequester::class : ApcLDDFeatureRequester::class,
             'apc_expiration' => 1));
         $builder = new LDUserBuilder(3);
         $user = $builder->build();
@@ -42,7 +45,11 @@ public function testGetApc() {
         $redis->hset("launchdarkly:features", 'foo', $this->gen_feature("foo", "baz"));
         $this->assertEquals("bar", $client->variation('foo', $user, 'jim'));
 
-        apc_delete("launchdarkly:features.foo");
+        if (extension_loaded('apcu')) {
+            \apcu_delete("launchdarkly:features.foo");
+        } else {
+            \apc_delete("launchdarkly:features.foo");
+        }
         $this->assertEquals("baz", $client->variation('foo', $user, 'jim'));
     }
 
diff --git a/integration-tests/composer.json b/integration-tests/composer.json
index e0cd69628..0ee1f605e 100644
--- a/integration-tests/composer.json
+++ b/integration-tests/composer.json
@@ -10,6 +10,7 @@
         }
     ],
     "require": {
+        "monolog/monolog": "1.21.0",
         "php": ">=5.3",
         "predis/predis": "1.0.*"
     },
diff --git a/src/LaunchDarkly/ApcLDDFeatureRequester.php b/src/LaunchDarkly/ApcLDDFeatureRequester.php
index 9ad8e7f82..308dc196a 100644
--- a/src/LaunchDarkly/ApcLDDFeatureRequester.php
+++ b/src/LaunchDarkly/ApcLDDFeatureRequester.php
@@ -18,10 +18,19 @@ function __construct($baseUri, $apiKey, $options) {
         }
     }
 
+    /**
+     * @param $key
+     * @param $success
+     * @return mixed
+     */
+    protected function fetch($key, &$success = null)
+    {
+        return \apc_fetch($key, $success);
+    }
 
     protected function get_from_cache($key) {
         $key = self::make_cache_key($key);
-        $enabled = apc_fetch($key);
+        $enabled = $this->fetch($key);
         if ($enabled === false) {
             return null;
         }
@@ -30,8 +39,19 @@ protected function get_from_cache($key) {
         }
     }
 
+    /**
+     * @param $key
+     * @param $var
+     * @param int $ttl
+     * @return mixed
+     */
+    protected function add($key, $var, $ttl = 0)
+    {
+        return \apc_add($key, $var, $ttl);
+    }
+
     protected function store_in_cache($key, $val) {
-        apc_add($this->make_cache_key($key), $val, $this->_expiration);
+        $this->add($this->make_cache_key($key), $val, $this->_expiration);
     }
 
     private function make_cache_key($name) {
diff --git a/src/LaunchDarkly/ApcuLDDFeatureRequester.php b/src/LaunchDarkly/ApcuLDDFeatureRequester.php
new file mode 100644
index 000000000..7b9562050
--- /dev/null
+++ b/src/LaunchDarkly/ApcuLDDFeatureRequester.php
@@ -0,0 +1,32 @@
+<?php
+namespace LaunchDarkly;
+
+
+/**
+ * Feature requester from an LDD-populated redis, with APC caching
+ *
+ * @package LaunchDarkly
+ */
+class ApcuLDDFeatureRequester extends ApcLDDFeatureRequester
+{
+    /**
+     * @param $key
+     * @param null $success
+     * @return mixed
+     */
+    protected function fetch($key, &$success = null)
+    {
+        return \apcu_fetch($key, $success);
+    }
+
+    /**
+     * @param $key
+     * @param $var
+     * @param int $ttl
+     * @return bool
+     */
+    protected function add($key, $var, $ttl = 0)
+    {
+        return \apcu_add($key, $var, $ttl);
+    }
+}
\ No newline at end of file