Dropping unecessary php: directive to function definitions in user guide
diff --git a/user_guide_src/source/helpers/download_helper.rst b/user_guide_src/source/helpers/download_helper.rst
index 860c568..fd95f4f 100644
--- a/user_guide_src/source/helpers/download_helper.rst
+++ b/user_guide_src/source/helpers/download_helper.rst
@@ -18,7 +18,7 @@
force_download()
================
-.. php:function:: force_download($filename = '', $data = '', $set_mime = FALSE)
+.. function:: force_download($filename = '', $data = '', $set_mime = FALSE)
:param string $filename: Filename
:param mixed $data: File contents