Allow native PHP functions used as rules to accept an additional parameter
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 78b1ae0..9aa07a1 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -582,7 +582,7 @@
// Users can use any native PHP function call that has one param.
if (function_exists($rule))
{
- $result = $rule($postdata);
+ $result = ($param !== FALSE) ? $rule($postdata, $param) : $rule($postdata);
if ($_in_array === TRUE)
{