Merge pull request facebookarchive#497 from guidolodetti/docs-facebookresponse-improvement

Improved the getGraphEdge() function documentation

Author: gfosco

docs/FacebookResponse.fbmd

@@ -181,7 +181,23 @@ Returns the response data in the form of a [`Facebook\GraphNodes\GraphUser`](/do
 <card>
 ### getGraphEdge() {#get-graph-edge}
 ~~~~
-public Facebook\GraphNodes\GraphEdge getGraphEdge()
+public Facebook\GraphNodes\GraphEdge getGraphEdge(
+	string|null $subclassName,
+	boolean $auto_prefix)
 ~~~~
 Returns the response data in the form of a [`Facebook\GraphNodes\GraphEdge`](/docs/php/GraphEdge) collection.
+
+`$subclassName`
+The `Facebook\GraphNodes\GraphNode` subclass to cast list items to. If none is provided, default is `Facebook\GraphNodes\GraphNode`.
+
+`$auto_prefix`
+Toggle to auto-prefix the subclass name. If none is provided, default is `true`.
+
+~~~~
+$res = $fb->get('/{facebook-page}/events', '{access-token}');
+$events = $res->getGraphEdge("GraphEvent");
+foreach ($events as $event) {
+	// . . .
+}
+~~~~
 </card>

src/Facebook/FacebookResponse.php

@@ -259,7 +259,7 @@ public function decodeBody()
     /**
      * Instantiate a new GraphObject from response.
      *
-     * @param string|null $subclassName The GraphNode sub class to cast to.
+     * @param string|null $subclassName The GraphNode subclass to cast to.
      *
      * @return \Facebook\GraphNodes\GraphObject
      *
@@ -276,7 +276,7 @@ public function getGraphObject($subclassName = null)
     /**
      * Instantiate a new GraphNode from response.
      *
-     * @param string|null $subclassName The GraphNode sub class to cast to.
+     * @param string|null $subclassName The GraphNode subclass to cast to.
      *
      * @return \Facebook\GraphNodes\GraphNode
      *
@@ -376,7 +376,7 @@ public function getGraphGroup()
     /**
      * Instantiate a new GraphList from response.
      *
-     * @param string|null $subclassName The GraphNode sub class to cast list items to.
+     * @param string|null $subclassName The GraphNode subclass to cast list items to.
      * @param boolean     $auto_prefix  Toggle to auto-prefix the subclass name.
      *
      * @return \Facebook\GraphNodes\GraphList
@@ -394,7 +394,7 @@ public function getGraphList($subclassName = null, $auto_prefix = true)
     /**
      * Instantiate a new GraphEdge from response.
      *
-     * @param string|null $subclassName The GraphNode sub class to cast list items to.
+     * @param string|null $subclassName The GraphNode subclass to cast list items to.
      * @param boolean     $auto_prefix  Toggle to auto-prefix the subclass name.
      *
      * @return \Facebook\GraphNodes\GraphEdge