Fix a magic_quotes-related bug and changed the default parameter value for is_php()
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index b3e984d..50eae8f 100755
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -73,7 +73,7 @@
  */
 	set_error_handler('_exception_handler');
 
-	if ( ! is_php('5.3'))
+	if ( ! is_php('5.4'))
 	{
 		@set_magic_quotes_runtime(0); // Kill magic quotes
 	}