T-SQL: Summary of all Functions in DB

-- Function details

SELECT  @@Servername AS ServerName ,

        DB_NAME() AS DB_Name ,

        o.name AS 'FunctionName' ,

        o.[type] ,

        o.create_date ,

        sm.[DEFINITION] AS 'Function script'

FROM    sys.objects o

        INNER JOIN sys.sql_modules sm ON o.object_id = sm.OBJECT_ID

WHERE   o.[Type] = 'FN' -- Function

ORDER BY o.NAME;