|-
| '''Summary'''
|Validates the XML {{Code|$input}} document against a {{Code|$schema}} and returns warnings, errors and fatal errors in a string sequence. See [[#validate:xsd|validate:xsd]] for more details on the function arguments.
|-
| '''Errors'''
|-
| '''Summary'''
|Validates the XML {{Code|$input}} document against a {{Code|$schema}} and returns warnings, errors and fatal errors as XML. See [[#validate:xsd|validate:xsd]] for more details on the function arguments.
|-
| '''Errors'''