Fixed #3878 and #3901: function filter_var missing

Till Brehm

2016-05-26 30aae443d7732380a9f0c243d88015132a9a2875

Fixed #3878 and #3901: function filter_var missing

 interface/lib/classes/tform_base.inc.php

@@ -1002,7 +1002,7 @@
                unset($error);
                break;
            case 'ISINT':
                if(function_exists('filter_var') && $field_value < 2147483647) {
                if(function_exists('filter_var') && $field_value < PHP_INT_MAX) {
                    //if($field_value != '' && filter_var($field_value, FILTER_VALIDATE_INT, array("options" => array('min_range'=>0))) === false) {
                    if($field_value != '' && filter_var($field_value, FILTER_VALIDATE_INT) === false) {
                        $errmsg = $validator['errmsg'];