Codeigniter Google Calendar Library?

I would like to use the google cal开发者_JS百科ender in an application of events and appointments, with codeigniter.

I found out this site

codeigniter google calender library

It is quite good but i saw this line

Then go to the uri_allowed_chars setting and place a question mark after 'a-z'. This allows you to put question marks in the URL.

This may causing security problem right...? So that is there anyone know another library? Thanks...

That statement in itself does not mean it would cause a security problem. URL's can have question marks ie: http://localhost/test.php?param=3

It would be more likely that the security issue would be with how you process the request.