Selection automatique de la langue d'un site

Bonjour a tous!

j'aurais besoin d'un petit coup de main en PHP: le site de mon boulot est en 4 langues differentes (vive la suisse ^^). et on aimerait qu'un utilisateur qui vient d'une region italophone voie le site en italien, en allemand pour les germanophones, en francais pour les francophones et en anglais pour les autres. pour le moment, ca fonctionne pas, comme vous pouvez vous en douter...
au passage, nous utilisons Joomla. y a-t-il une possibilite pour faire ca automatiquement?

merci a tous

voici le code qu'on a actuellement:


// loads english language file by default
if ($mosConfig_lang=='')
{

//$mosConfig_lang = 'english';
if (substr($_SERVER['HTTP_ACCEPT_LANGUAGE'],0,2)=="en")
{
$mosConfig_lang = 'english';
}
else
{
if (substr($_SERVER['HTTP_ACCEPT_LANGUAGE'],0,2)=="de")
{
$mosConfig_lang = 'deutsch';
}
else
{
if (substr($_SERVER['HTTP_ACCEPT_LANGUAGE'],0,2)=="it")
{
$mosConfig_lang = 'Italian';
}
else
{
$mosConfig_lang = 'french';
}
}
}

}

include_once( $mosConfig_absolute_path .'/language/' . $mosConfig_lang . '.php' );



et voici le code que j'ai trouvé pour le remplacer:


function get_languages( $feature, $spare='' )
{
// get the languages
$a_languages = languages();
$index = '';
$complete = '';
$found = false;// set to default value
//prepare user language array
$user_languages = array();

//check to see if language is set
if ( isset( $_SERVER["HTTP_ACCEPT_LANGUAGE"] ) )
{
$languages = strtolower( $_SERVER["HTTP_ACCEPT_LANGUAGE"] );
$languages = str_replace( ' ', '', $languages );
$languages = explode( ",", $languages );

foreach ( $languages as $language_list )
{
// pull out the language, place languages into array of full and primary
// string structure:
$temp_array = array();
// slice out the part before ; on first step, the part before - on second, place into array
$temp_array[0] = substr( $language_list, 0, strcspn( $language_list, ';' ) );//full language
$temp_array[1] = substr( $language_list, 0, 2 );// cut out primary language
//place this array into main $user_languages language array
$user_languages[] = $temp_array;
}

//start going through each one
for ( $i = 0; $i < count( $user_languages ); $i++ )
{
foreach ( $a_languages as $index => $complete )
{
if ( $index == $user_languages[$i][0] )
{
// complete language, like english (canada)
$user_languages[$i][2] = $complete;
// extract working language, like english
$user_languages[$i][3] = substr( $complete, 0, strcspn( $complete, ' (' ) );
}
}
}
}
else// if no languages found
{
$user_languages[0] = array( '','','','' ); //return blank array.
}
// print_r($user_languages);
// return parameters
if ( $feature == 'data' )
{
return $user_languages;
}

// this is just a sample, replace target language and file names with your own.
elseif ( $feature == 'header' )
{
switch ( $user_languages[0][1] )// get default primary language, the first one in array that is
{
case 'en':
$location = 'english.php';
$found = true;
break;
case 'fr':
$location = 'french.php';
$found = true;
break;
case 'de':
$location = 'german.php';
$found = true;
break;
case 'it':
$location = 'italian.php';
$found = true;
break;
default:
break;
}
if ( $found )
{
header("Location: $location");
}
else// make sure you have a default page to send them to
{
header("Location: default.php");
}
}
}

function languages()
{
// pack abbreviation/language array
// important note: you must have the default language as the last item in each major language, after all the
// en-ca type entries, so en would be last in that case
$a_languages = array(
'en-au' => 'English (Australia)',
'en-bz' => 'English (Belize)',
'en-ca' => 'English (Canada)',
'en-ie' => 'English (Ireland)',
'en-jm' => 'English (Jamaica)',
'en-nz' => 'English (New Zealand)',
'en-ph' => 'English (Philippines)',
'en-za' => 'English (South Africa)',
'en-tt' => 'English (Trinidad)',
'en-gb' => 'English (United Kingdom)',
'en-us' => 'English (United States)',
'en-zw' => 'English (Zimbabwe)',
'en' => 'English',
'us' => 'English (United States)',
'fr-be' => 'French (Belgium)',
'fr-ca' => 'French (Canada)',
'fr-lu' => 'French (Luxembourg)',
'fr-mc' => 'French (Monaco)',
'fr-ch' => 'French (Switzerland)',
'fr' => 'French (France)',
'de-at' => 'German (Austria)',
'de-li' => 'German (Liechtenstein)',
'de-lu' => 'German (Luxembourg)',
'de-ch' => 'German (Switzerland)',
'de' => 'German (Germany)',
'it-ch' => 'Italian (Switzerland)',
'it' => 'Italian (Italy)',

return $a_languages;
}