Web Script to receive info via POST, collate and email every hour.

I am using a Virtual Mobile Number from textmarketer.co.uk to receive incoming sms/text messages.

The textmarketer service has an API that will "POST" the received text message to a web script (see api doc here: http://www.textmarketer.co.uk/pdfebooks/Incoming_SMS.pdf - I am using txtus/virtual mobile number).

I therefore require a web script that will accept the POST, store them in a MySQL database of some sort, and email me every hour a csv file of the received messages/numbers. The CSV file would contain 2 colums (number and message).

I would like to have some kind of back end feature where I can specify what word to look for in the received message, and only receive numbers/messages where the received message contains the specified word. For example if I specify the word "Yes", I should receive via email every hour, a CSV file of all received numbers/messages received in the last hour where the word "Yes" is somewhere in the message.

I believe this should be a simple php script, but open to suggestions on using dotnet or other languages.