Add option allowed_values_nc as an alternative to now deprecated nocase option. Allow null in allowed_values. Allow 'null' or 'NULL' as one of the possible type/types values.
Add option allowed_values_nc as an alternative to now deprecated nocase option.
Allow null in allowed_values.
Allow 'null' or 'NULL' as one of the possible type/types values.

cmanley/PHP-Validate