Mobile::Wurfl is a perl module that provides an interface to mobile device information represented in wurfl (). The Mobile::Wurfl module works by saving this device information in a database (preferably mysql). It offers an interface to create the relevant database tables from a SQL file containing "CREATE TABLE" statements (a sample is provided with the distribution). It also provides a method for updating the data in the database from the wurfl.xml file hosted at . It provides methods to query the database for lists of capabilities, and groups of capabilities. It also provides a method for generating a "canonical" user agent string (see "canonical_ua"). Finally, it provides a method for looking up values for particular capability / user agent combinations. By default, this makes use of the hierarchical "fallback" structure of wurfl to lookup capabilities fallback devices if these capabilities are not defined for the requested device. For "HOWTO" information on how to use Mobile::Wurfl look at the HOWTO.txt file in this distribution, or see .