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...

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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.