diff --git a/src/Illuminate/Http/Request.php b/src/Illuminate/Http/Request.php
index edcab364e5dc..fe1ca79e9d59 100755
--- a/src/Illuminate/Http/Request.php
+++ b/src/Illuminate/Http/Request.php
@@ -498,6 +498,17 @@ protected function isValidFile($file)
         return $file instanceof SplFileInfo && $file->getPath() != '';
     }
 
+    /**
+     * Determine if a header is set on the request.
+     *
+     * @param  string  $key
+     * @return bool
+     */
+    public function hasHeader($key)
+    {
+        return ! is_null($this->header($key));
+    }
+
     /**
      * Retrieve a header from the request.
      *