respect-validation/docs/When.md

When

• When(Validatable $if, Validatable $then)
• When(Validatable $if, Validatable $then, Validatable $else)

A ternary validator that accepts three parameters.

When the $if validates, returns validation for $then. When the $if doesn't validate, returns validation for $else, if defined.

v::when(v::intVal(), v::positive(), v::notEmpty())->validate($input);

In the sample above, if $input is an integer, then it must be positive. If $input is not an integer, then it must not be empty. When $else is not defined use AlwaysInvalid

Changelog

Version	Description
0.8.0	Allow to use rule without else
0.3.9	Created

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See also:

• AllOf
• OneOf
• NoneOf