I checked this using XDebug, and the function actually returns null (which is something different than false). I assume it is the comment that should be changed, and not the code itself...

Renamed `attributeName` and `className` to `targetAttribute` and `targetClass` for `UniqueValidator` and `ExistValidator`.
Refactored UniqueValidator and ExistValidator.

doc fixes

Fixes #1579: throw exception when the given AR relation name does not match in a case sensitive manner.
Renamed `ActiveRecord::getPopulatedRelations()` to `getRelatedRecords()`

also fixed count behavior according to limit and offset.
fixes #1458

fixes #1560

fixes #1545

fixed #1021

fixes #1545

fixes #1556

issue #1523

fixes #1541

prevent call strlen function twice