diff --git a/user_guide_src/source/helpers/date_helper.rst b/user_guide_src/source/helpers/date_helper.rst
index bed3b32..e0f9f00 100644
--- a/user_guide_src/source/helpers/date_helper.rst
+++ b/user_guide_src/source/helpers/date_helper.rst
@@ -50,7 +50,7 @@
 	:returns:	MySQL-formatted date
 	:rtype:	string
 
-	This function is identical to PHP's `date() <http://www.php.net/date>`_
+	This function is identical to PHP's `date() <http://php.net/manual/en/function.date.php>`_
 	function, except that it lets you use MySQL style date codes, where each
 	code letter is preceded with a percent sign, e.g. `%Y %m %d`
 
@@ -84,7 +84,7 @@
 
 	.. note:: This function is DEPRECATED. Use the native ``date()`` combined with
 		`DateTime's format constants
-		<http://www.php.net/manual/en/class.datetime.php#datetime.constants.types>`_
+		<http://php.net/manual/en/class.datetime.php#datetime.constants.types>`_
 		instead::
 
 			echo date(DATE_RFC822, time());
diff --git a/user_guide_src/source/helpers/email_helper.rst b/user_guide_src/source/helpers/email_helper.rst
index 6852269..1ee97d9 100644
--- a/user_guide_src/source/helpers/email_helper.rst
+++ b/user_guide_src/source/helpers/email_helper.rst
@@ -62,7 +62,7 @@
 	:returns:	TRUE if the mail was successfully sent, FALSE in case of an error
 	:rtype:	bool
 
-	Sends an email using PHP's native `mail() <http://www.php.net/function.mail>`_
+	Sends an email using PHP's native `mail() <http://php.net/function.mail>`_
 	function.
 
 	.. note:: All that this function does is to use PHP's native ``mail``
diff --git a/user_guide_src/source/helpers/file_helper.rst b/user_guide_src/source/helpers/file_helper.rst
index 92cb31a..833cdde 100644
--- a/user_guide_src/source/helpers/file_helper.rst
+++ b/user_guide_src/source/helpers/file_helper.rst
@@ -76,7 +76,7 @@
 
 		write_file('./path/to/file.php', $data, 'r+');
 
-	The default mode is 'wb'. Please see the `PHP user guide <http://php.net/fopen>`_
+	The default mode is 'wb'. Please see the `PHP user guide <http://php.net/manual/en/function.fopen.php>`_
 	for mode options.
 
 	.. note: In order for this function to write data to a file, its permissions must
diff --git a/user_guide_src/source/helpers/smiley_helper.rst b/user_guide_src/source/helpers/smiley_helper.rst
index 978d11e..3e76699 100644
--- a/user_guide_src/source/helpers/smiley_helper.rst
+++ b/user_guide_src/source/helpers/smiley_helper.rst
@@ -43,7 +43,7 @@
 View as described.
 
 .. important:: Before you begin, please `download the smiley images
-	<http://ellislab.com/asset/ci_download_files/smileys.zip>`_
+	<https://ellislab.com/asset/ci_download_files/smileys.zip>`_
 	and put them in a publicly accessible place on your server.
 	This helper also assumes you have the smiley replacement array
 	located at `application/config/smileys.php`
diff --git a/user_guide_src/source/helpers/string_helper.rst b/user_guide_src/source/helpers/string_helper.rst
index 9d0d890..a1acb21 100644
--- a/user_guide_src/source/helpers/string_helper.rst
+++ b/user_guide_src/source/helpers/string_helper.rst
@@ -124,7 +124,7 @@
 	:rtype:	string
 
 	Converts double slashes in a string to a single slash, except those
-	found in URL protocol prefixes (e.g. http://).
+	found in URL protocol prefixes (e.g. http&#58;//).
 
 	Example::
 
diff --git a/user_guide_src/source/helpers/url_helper.rst b/user_guide_src/source/helpers/url_helper.rst
index 83864d9..64deae2 100644
--- a/user_guide_src/source/helpers/url_helper.rst
+++ b/user_guide_src/source/helpers/url_helper.rst
@@ -144,7 +144,7 @@
 	be a string or an array.
 
 	.. note:: If you are building links that are internal to your application
-		do not include the base URL (http://...). This will be added
+		do not include the base URL (http&#58;//...). This will be added
 		automatically from the information specified in your config file.
 		Include only the URI segments you wish appended to the URL.
 
@@ -317,7 +317,7 @@
 	:returns:	Protocol-prefixed URL string
 	:rtype:	string
 
-	This function will add http:// in the event that a protocol prefix
+	This function will add http&#58;// in the event that a protocol prefix
 	is missing from a URL.
 
 	Pass the URL string to the function like this::