strip_tags and htmlentities

Question

Should I use htmlentities with strip_tags?

I am currently using strip_tags when adding to database and thinking about removing

Answer 1

I wouldn't use htmlentities as this will allow you to insert the string, as is, into the database. Yhis is no good for account details or forums.

Use mysql_real_escape_string for inserting data into the database, and strip_tags for receiving data from the database and echoing out to the screen.