Returns an array with the languages of the user agent in descending importance order (0 => most important). Contains only the FIRST TWO languages (as of CodeIgniter version 1.5.4). The values are NOT CodeIgniter language codes, but the strings as proposed by the user agent.
Array ( [0] => de-de [1] => fr )
Array ( [0] => Undefined ) // return when no language is set
Note: This function is not typically very reliable since some browsers do not provide language info, and even among those that do, it is not always accurate.
Returns an array with the character sets of the user agent.
Array ( [0] => ISO-8859-1 [1] => utf-8 )
Array ( [0] => Undefined ) // return when no character set info has been transmitted
Note: This function is not typically very reliable since some browsers do not provide character-set info, and even among those that do, it is not always accurate.