I have the following CSV
Date,Event,Description 24/01/2010,Football,Football practice for all Years. 24/01/2010,Cricket,Cricket Practice for all Years. 25/01/201
The fastest (yet not optimal) way to do this is using fgetcsv and then iterate over the table, picking out those dates that are today.
I'd probably reconsider the format of the data (make it a database), unless there are other apps depending on it.