From 3a08836e027595f99c008dc9b1576d64f51ac0ea Mon Sep 17 00:00:00 2001
From: Emanuele Minotto <minottoemanuele@gmail.com>
Date: Tue, 27 Oct 2015 22:17:41 +0100
Subject: [PATCH 1/2] single internal type for response headers

---
 src/Facebook/HttpClients/FacebookStream.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Facebook/HttpClients/FacebookStream.php b/src/Facebook/HttpClients/FacebookStream.php
index 95aa22e7a..1ec7177dc 100644
--- a/src/Facebook/HttpClients/FacebookStream.php
+++ b/src/Facebook/HttpClients/FacebookStream.php
@@ -41,7 +41,7 @@ class FacebookStream
     /**
      * @var array Response headers from the stream wrapper
      */
-    protected $responseHeaders;
+    protected $responseHeaders = [];
 
     /**
      * Make a new context stream reference instance
@@ -56,7 +56,7 @@ public function streamContextCreate(array $options)
     /**
      * The response headers from the stream wrapper
      *
-     * @return array|null
+     * @return array
      */
     public function getResponseHeaders()
     {
@@ -73,7 +73,7 @@ public function getResponseHeaders()
     public function fileGetContents($url)
     {
         $rawResponse = file_get_contents($url, false, $this->stream);
-        $this->responseHeaders = $http_response_header;
+        $this->responseHeaders = $http_response_header ?: [];
 
         return $rawResponse;
     }

From d4ae9ff4f6a50f91910821edbea1fc055f0a33cb Mon Sep 17 00:00:00 2001
From: Emanuele Minotto <minottoemanuele@gmail.com>
Date: Tue, 27 Oct 2015 22:18:13 +0100
Subject: [PATCH 2/2] use the empty function instead of implicit casting

---
 src/Facebook/HttpClients/FacebookStreamHttpClient.php | 2 +-
 src/Facebook/Url/FacebookUrlManipulator.php           | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Facebook/HttpClients/FacebookStreamHttpClient.php b/src/Facebook/HttpClients/FacebookStreamHttpClient.php
index b15751431..b88a6625a 100644
--- a/src/Facebook/HttpClients/FacebookStreamHttpClient.php
+++ b/src/Facebook/HttpClients/FacebookStreamHttpClient.php
@@ -66,7 +66,7 @@ public function send($url, $method, $body, array $headers, $timeOut)
         $rawBody = $this->facebookStream->fileGetContents($url);
         $rawHeaders = $this->facebookStream->getResponseHeaders();
 
-        if ($rawBody === false || !$rawHeaders) {
+        if ($rawBody === false || empty($rawHeaders)) {
             throw new FacebookSDKException('Stream returned an empty response', 660);
         }
 
diff --git a/src/Facebook/Url/FacebookUrlManipulator.php b/src/Facebook/Url/FacebookUrlManipulator.php
index 20a0299e0..2e540956e 100644
--- a/src/Facebook/Url/FacebookUrlManipulator.php
+++ b/src/Facebook/Url/FacebookUrlManipulator.php
@@ -76,7 +76,7 @@ public static function removeParamsFromUrl($url, array $paramsToFilter)
      */
     public static function appendParamsToUrl($url, array $newParams = [])
     {
-        if (!$newParams) {
+        if (empty($newParams)) {
             return $url;
         }