Respect\Validation

For certain types you can't make comparisons out of the box in PHP but Validation brings support to a few of them. You can also create and use your own rules. To do this, you will need to create a rule and an exception to go with the rule. Each rule must have an Exception to go with it. Exceptions should be named with the name of the rule followed by the word Exception. The process of creating an Exception is similar to creating a rule but there are no methods in the Exception class. On oldest versions of Respect\Validation all validators treat input as optional and accept an empty string input as valid. Even though a useful feature that caused a lot of troubles for our team and neither was an obvious behavior. Also there was some people who likes to accept null as optional value, not only an empty string.