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-rw-r--r--system/libraries/Form_validation.php11
1 files changed, 9 insertions, 2 deletions
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index e38c44277..043a97c6d 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -44,7 +44,7 @@ defined('BASEPATH') OR exit('No direct script access allowed');
* @subpackage Libraries
* @category Validation
* @author EllisLab Dev Team
- * @link https://codeigniter.com/user_guide/libraries/form_validation.html
+ * @link https://codeigniter.com/userguide3/libraries/form_validation.html
*/
class CI_Form_validation {
@@ -1062,7 +1062,7 @@ class CI_Form_validation {
{
return is_array($str)
? (empty($str) === FALSE)
- : (trim($str) !== '');
+ : (trim((string) $str) !== '');
}
// --------------------------------------------------------------------
@@ -1214,6 +1214,13 @@ class CI_Form_validation {
$str = $matches[2];
}
+ // Apparently, FILTER_VALIDATE_URL doesn't reject digit-only names for some reason ...
+ // See https://github.com/bcit-ci/CodeIgniter/issues/5755
+ if (ctype_digit($str))
+ {
+ return FALSE;
+ }
+
// PHP 7 accepts IPv6 addresses within square brackets as hostnames,
// but it appears that the PR that came in with https://bugs.php.net/bug.php?id=68039
// was never merged into a PHP 5 branch ... https://3v4l.org/8PsSN