Asterisk Event Hotline

I need an customized Asterisk solution for an event hotline. I want to be able to schedule information once per month and have the system to dynamically create playlists containing audio based on a query. i.e. Users will be able to call in and here a series of audio clips advertising events occurring that day. Would prefer a solution coded (1) PHP, (2) Perl, or as a last resort C....