Validating data before inserting into database

[symnprorn]

I want to validate the data contained by Value Objects before inserting into the database (e.g. check that php string is smaller than 255 chars before inserting into a column of type \[code\]varchar(255)\[/code\] or that a string is not inserted in an \[code\]int(11)\[/code\] table column, php date has the correct format etc.).Is there any framework or easy way to validate data before \[code\]SQL INSERT\[/code\] or \[code\]UPDATE\[/code\] operations?Thanks!