$isFunction = 'is_'.$type;
$ctypeFunction = 'ctype_'.$type;
- if (function_exists($isFunction) && $isFunction($value)) {
+ if (\function_exists($isFunction) && $isFunction($value)) {
return;
- } elseif (function_exists($ctypeFunction) && $ctypeFunction($value)) {
+ } elseif (\function_exists($ctypeFunction) && $ctypeFunction($value)) {
return;
} elseif ($value instanceof $constraint->type) {
return;