diff --git a/integration-tests/LDDFeatureRequesterTest.php b/integration-tests/LDDFeatureRequesterTest.php
index 602b87717..64ac40eaf 100644
--- a/integration-tests/LDDFeatureRequesterTest.php
+++ b/integration-tests/LDDFeatureRequesterTest.php
@@ -47,19 +47,54 @@ public function testGetApc() {
     }
 
     private function gen_feature($key, $val) {
-        $data = <<<EOF
-           {"name": "Feature $key", "key": "$key", "kind": "flag", "salt": "Zm9v", "on": true,
-            "variations": [{"value": "$val", "weight": 100,
-                            "targets": [{"attribute": "key", "op": "in", "values": []}],
-                            "userTarget": {"attribute": "key", "op": "in", "values": []}},
-                           {"value": false, "weight": 0,
-                            "targets": [{"attribute": "key", "op": "in", "values": []}],
-                            "userTarget": {"attribute": "key", "op": "in", "values": []}}],
-            "commitDate": "2015-09-08T21:24:16.712Z",
-            "creationDate": "2015-09-08T21:06:16.527Z",
-            "version": 4}
-EOF;
-         return $data;
+        $data = [
+            'name' => 'Feature ' . $key,
+            'key' => $key,
+            'kind' => 'flag',
+            'salt' => 'Zm9v',
+            'on' => true,
+            'variations' => [
+                $val,
+                false,
+            ],
+            'commitDate' => '2015-09-08T21:24:16.712Z',
+            'creationDate' => '2015-09-08T21:06:16.527Z',
+            'version' => 4,
+            'prerequisites' => [],
+            'targets' => [
+                [
+                    'values' => [
+                        $val,
+                    ],
+                    'variation' => 0,
+                ],
+                [
+                    'values' => [
+                        false,
+                    ],
+                    'variation' => 1,
+                ],
+            ],
+            'rules' => [],
+            'fallthrough' => [
+                'rollout' => [
+                    'variations' => [
+                        [
+                            'variation' => 0,
+                            'weight' => 95000,
+                        ],
+                        [
+                            'variation' => 1,
+                            'weight' => 5000,
+                        ],
+                    ],
+                ],
+            ],
+            'offVariation' => null,
+            'deleted' => false,
+        ];
+        
+        return \json_encode($data);
     }
 
 }
diff --git a/integration-tests/Vagrantfile b/integration-tests/Vagrantfile
index ff73f459b..5529ac9d3 100644
--- a/integration-tests/Vagrantfile
+++ b/integration-tests/Vagrantfile
@@ -17,6 +17,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   config.vm.box_url = "https://vagrantcloud.com/ubuntu/boxes/trusty64"
 
   config.vm.provision :shell, path: "bootstrap.sh"
+  config.vm.provision :shell, path: "bootstrap.user.sh", privileged: false
 
   # Create a forwarded port mapping which allows access to a specific port
   # within the machine from a port on the host machine. In the example below,
diff --git a/integration-tests/bootstrap.sh b/integration-tests/bootstrap.sh
index 3e75fe316..786182dfa 100755
--- a/integration-tests/bootstrap.sh
+++ b/integration-tests/bootstrap.sh
@@ -35,25 +35,3 @@ cat <<EOF > /home/vagrant/.vimrc
 set tabstop=4
 EOF
 chown vagrant.vagrant /home/vagrant/.vimrc
-
-su - vagrant
-cd ~vagrant
-pwd
-curl -s -L -O https://github.com/phpbrew/phpbrew/raw/master/phpbrew
-chmod +x phpbrew
-sudo mv phpbrew /usr/bin/phpbrew
-phpbrew init
-phpbrew known --update
-phpbrew update
-phpbrew install 5.4.34 +default
-
-echo "source $HOME/.phpbrew/bashrc" >> /home/vagrant/.bashrc
-source $HOME/.bashrc
-phpbrew switch php-5.4.34
-phpbrew ext install apc
-echo "apc.enable_cli = 1" >> ~/.phpbrew/php/php-5.4.34/etc/php.ini
-
-
-cd /home/vagrant/project/integration-tests
-curl -sS https://getcomposer.org/installer | php
-php composer.phar install
diff --git a/integration-tests/bootstrap.user.sh b/integration-tests/bootstrap.user.sh
new file mode 100755
index 000000000..60145cb70
--- /dev/null
+++ b/integration-tests/bootstrap.user.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+echo
+echo "install phpbrew and php54"
+cd ~
+curl -s -L -O https://github.com/phpbrew/phpbrew/raw/master/phpbrew
+chmod +x phpbrew
+sudo mv phpbrew /usr/bin/phpbrew
+phpbrew init
+phpbrew known --update
+phpbrew update
+phpbrew install 5.4.34 +default
+
+echo
+echo "switch php54"
+echo "source $HOME/.phpbrew/bashrc" >> /home/vagrant/.bashrc
+source $HOME/.phpbrew/bashrc
+phpbrew switch 5.4.34
+
+echo
+echo "install php54-apc"
+phpbrew ext install apc
+echo "apc.enable_cli = 1" >> ~/.phpbrew/php/php-5.4.34/etc/php.ini
+echo "date.timezone =UTC" >> ~/.phpbrew/php/php-5.4.34/etc/php.ini
+
+echo
+echo "update project dependencies"
+cd /home/vagrant/project/integration-tests
+curl -sS https://getcomposer.org/installer | php
+php composer.phar update
diff --git a/src/LaunchDarkly/LDClient.php b/src/LaunchDarkly/LDClient.php
index bc4e96ce7..d2f3551f0 100644
--- a/src/LaunchDarkly/LDClient.php
+++ b/src/LaunchDarkly/LDClient.php
@@ -88,7 +88,7 @@ public function __construct($sdkKey, $options = array()) {
             $featureRequesterClass = '\\LaunchDarkly\\GuzzleFeatureRequester';
         }
 
-        if (!is_a($featureRequesterClass, FeatureRequester::class, true)) {
+        if (!is_a($featureRequesterClass, '\LaunchDarkly\FeatureRequester', true)) {
             throw new \InvalidArgumentException;
         }
         $this->_featureRequester = new $featureRequesterClass($this->_baseUri, $sdkKey, $options);