diff options
| -rw-r--r-- | system/libraries/Form_validation.php | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php index e7b89d0c4..8e03e91f3 100644 --- a/system/libraries/Form_validation.php +++ b/system/libraries/Form_validation.php @@ -1129,7 +1129,7 @@ class CI_Form_validation { */ public function alpha($str) { - return (bool) preg_match('/^[a-z]+$/i', $str); + return ctype_alpha($str); } // -------------------------------------------------------------------- @@ -1142,7 +1142,7 @@ class CI_Form_validation { */ public function alpha_numeric($str) { - return (bool) preg_match('/^[a-z0-9]+$/i', $str); + return ctype_alnum((string) $str); } // -------------------------------------------------------------------- @@ -1264,7 +1264,7 @@ class CI_Form_validation { */ public function is_natural($str) { - return (bool) preg_match('/^[0-9]+$/', $str); + return ctype_digit((string) $str); } // -------------------------------------------------------------------- @@ -1277,7 +1277,7 @@ class CI_Form_validation { */ public function is_natural_no_zero($str) { - return ($str != 0 && preg_match('/^[0-9]+$/', $str)); + return ($str != 0 && ctype_digit((string) $str)); } // -------------------------------------------------------------------- |