Merge pull request #3769 from ftwbzhao/develop

[ci skip] Support for status codes 100, 101, 402 in set_status_header()
diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
index bf623b0..5f8c6ce 100644
--- a/system/helpers/url_helper.php
+++ b/system/helpers/url_helper.php
@@ -161,7 +161,7 @@
 
 		$site_url = is_array($uri)
 			? site_url($uri)
-			: preg_match('#^(\w+:)?//#i', $uri) ? $uri : site_url($uri);
+			: (preg_match('#^(\w+:)?//#i', $uri) ? $uri : site_url($uri));
 
 		if ($title === '')
 		{
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 04a0aa5..94a3832 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -16,6 +16,7 @@
 
 -  Fixed a bug (#3733) - Autoloading of libraries with aliases didn't work, although it was advertised to.
 -  Fixed a bug (#3744) - Redis :doc:`Caching <libraries/caching>` driver didn't handle authentication failures properly.
+-  Fixed a bug (#3761) - :doc:`URL Helper <helpers/url_helper>` function :php:func:`anchor()` didn't work with array inputs.
 
 Version 3.0.0
 =============