How do I protect my database from malicious attacks while allowing punctuation marks?

[eluser]mlage[/eluser]
Check out the Queries documentation in CI:
http://ellislab.com/codeigniter/user-gui...eries.html

Go to the bottom of the page for binding queries Nice and simple... and you don't have to worry

Also, if you haven't read it already, check out the documentation on general security practices for CI:
http://ellislab.com/codeigniter/user-gui...urity.html

Also, read the documentation about the input class (very nifty )
http://ellislab.com/codeigniter/user-gui...input.html