4 files changed, 10 insertions, 7 deletions

diff --git a/application/config/config.php b/application/config/config.php
index 880393c29..a6d10d8dc 100644
--- a/application/config/config.php
+++ b/application/config/config.php
@@ -79,6 +79,8 @@ $config['language']	= 'english';
 | This determines which character set is used by default in various methods
 | that require a character set to be provided.
 |
+| See http://php.net/htmlspecialchars for a list of supported charsets.
+|
 */
 $config['charset'] = 'UTF-8';
 
diff --git a/system/core/Security.php b/system/core/Security.php
index 342455f27..cc21ddc91 100755
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -525,9 +525,10 @@ class CI_Security {
 	 * @param	string
 	 * @return	string
 	 */
-	public function entity_decode($str, $charset='UTF-8')
+	public function entity_decode($str, $charset = NULL)
 	{
 		if (stristr($str, '&') === FALSE) return $str;
+		if (empty($charset)) $charset = config_item('charset');
 
 		// The reason we are not using html_entity_decode() by itself is because
 		// while it is not technically correct to leave out the semicolon
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index d9305c00b..130daee6a 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -642,11 +642,8 @@ if ( ! function_exists('form_prep'))
 		{
 			return $str;
 		}
-
-		$str = htmlspecialchars($str);
-
-		// In case htmlspecialchars misses these.
-		$str = str_replace(array("'", '"'), array("'", """), $str);
+		
+		$str = html_escape($str);
 
 		if ($field_name != '')
 		{
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index 19b4eec03..0bb0938a4 100644
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -82,9 +82,12 @@ if ( ! function_exists('auto_typography'))
  */
 if ( ! function_exists('entity_decode'))
 {
-	function entity_decode($str, $charset='UTF-8')
+	function entity_decode($str, $charset = NULL)
 	{
 		global $SEC;
+		
+		if (empty($charset)) $charset = config_item('charset');
+		
 		return $SEC->entity_decode($str, $charset);
 	}
 }