Custom Redirects Error

Code:

//==========================================================================
// Sample Custom 301 Redirect: calendar dropdown redirect (Remove the '//' in front of the rule to enable).
// Note: Enable this redirect when using the sample CRRs provided for calendar rewriting above.
//==========================================================================
'calendar/\?(.+)' => 'calendar.php?$1'
't28' => 't115'

The following code works but it seems to affect any thread number that begins with 28 instead of just thread 28. What do I need to do ti limit it to t28 only but not t280 or t284 etc?

You should use

Code:

'^t28$' => 't115'