tightened human time stamp validation regex
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php
index 095e460..a82450a 100644
--- a/system/helpers/date_helper.php
+++ b/system/helpers/date_helper.php
@@ -442,7 +442,7 @@
$datestr = trim($datestr);
$datestr = preg_replace("/\040+/", "\040", $datestr);
- if ( ! ereg("^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\040[0-9]{1,2}:[0-9]{1,2}.*$", $datestr))
+ if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr))
{
return FALSE;
}