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-rw-r--r--application/config/config.php9
1 files changed, 6 insertions, 3 deletions
diff --git a/application/config/config.php b/application/config/config.php
index cd2ca479b..5240f6c26 100644
--- a/application/config/config.php
+++ b/application/config/config.php
@@ -141,15 +141,18 @@ $config['subclass_prefix'] = 'MY_';
| Allowed URL Characters
|--------------------------------------------------------------------------
|
-| This lets you specify with a regular expression which characters are permitted
-| within your URLs. When someone tries to submit a URL with disallowed
-| characters they will get a warning message.
+| This lets you specify which characters are permitted within your URLs.
+| When someone tries to submit a URL with disallowed characters they will
+| get a warning message.
|
| As a security measure you are STRONGLY encouraged to restrict URLs to
| as few characters as possible. By default only these are allowed: a-z 0-9~%.:_-
|
| Leave blank to allow all characters -- but only if you are insane.
|
+| The configured value is actually a regular expression character group
+| and it will be executed as: ! preg_match('/^[<permitted_uri_chars>]+$/i
+|
| DO NOT CHANGE THIS UNLESS YOU FULLY UNDERSTAND THE REPERCUSSIONS!!
|
*/