[Routing] Add example of Requirement enum #20409
Merged
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Requirement Enum values are not cases but constants.
So in YAML routing format we must use
!php/const
instead of!php/enum
.This PR add examples to how to use the "Requirement enum"
Can you confirm constants are not supported in XML format for routing ? (if not, maybe we can make PR like symfony/symfony#58035 cc @alexandre-daubois)