Form Validation - Not In Method
diff --git a/system/language/english/form_validation_lang.php b/system/language/english/form_validation_lang.php
index 1230ce5..a98f49b 100644
--- a/system/language/english/form_validation_lang.php
+++ b/system/language/english/form_validation_lang.php
@@ -55,6 +55,7 @@
$lang['form_validation_greater_than_equal_to'] = 'The {field} field must contain a number greater than or equal to {param}.';
$lang['form_validation_between'] = 'The {field} field must contain a number between {param}.';
$lang['form_validation_in'] = 'The {field} field must be within a predetermined list: {param}.';
+$lang['form_validation_not_in'] = 'The {field} field must not be within: {param}.';
$lang['form_validation_date'] = 'The {field} field must be a proper date.';
/* End of file form_validation_lang.php */
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 3e8204e..74a5b87 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1475,6 +1475,22 @@
// --------------------------------------------------------------------
/**
+ * Value should not be within an array of values
+ *
+ * @param string
+ * @param array
+ * @return bool
+ */
+ public function not_in($value, $list)
+ {
+ $list = array_map('trim', explode(',', (string) $list));
+
+ return ! in_array((string) $value, $list);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Value should be a valid date
*
* @param string
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst
index 3f72369..cbf8028 100644
--- a/user_guide_src/source/libraries/form_validation.rst
+++ b/user_guide_src/source/libraries/form_validation.rst
@@ -964,6 +964,7 @@
or not numeric.
**between** Yes Returns FALSE if the form element is not within the given range. between[10,20]
**in** Yes Returns FALSE if the form element is not within a predetermined list. in[red,blue,green]
+**not_in** Yes Returns FALSE if the form element is within a predetermined list. not_in[red,blue,green]
**date** No Returns FALSE if the form element is not a proper date.
**alpha** No Returns FALSE if the form element contains anything other than alphabetical characters.
**alpha_numeric** No Returns FALSE if the form element contains anything other than alpha-numeric characters.