This PR declares PHP native type for the parameter $values of the Header::addValues method, removes related test method and superfluous PHPDoc annotations. This way, we no longer need to manually check if the value is string or array.
Coverage: 100.0%. Remained the same when pulling 7c83e37fbcdd22f8e586cf83fbbcf23933d8fe01 on nbayramberdiyev:improve-header into bd76383642ad2c217a9238e6b1e61859d075c4aa on slimphp:master.
This PR declares PHP native type for the parameter
$values
of theHeader::addValues
method, removes related test method and superfluous PHPDoc annotations. This way, we no longer need to manually check if the value is string or array.