http_negotiate_language

(PECL pecl_http >= 0.1.0)

http_negotiate_language — Négocie le langage préféré par les clients

Description

string http_negotiate_language ( array $supported [, array &$result ] )

Cette fonction négocie le langage préféré par les clients, basé sur les en-têtes HTTP Accept-Language.

Liste de paramètres

supported: tableau contenant les langages supportés en tant que valeurs
result: contient un tableau, contenant les résultats de la négociation

Valeurs de retour

Retourne le langage négocié ou le langage par défaut (i.e. première entrée du tableau) si aucun ne correspond.

Exemples

Exemple #1 Exemple avec http_negotiate_language()


<?php
$langs = array(
    'en-US',// défaut
    'fr',
    'fr-FR',
    'de',
    'de-DE',
    'de-AT',
    'de-CH',
);

include './langs/'. http_negotiate_language($langs, $result) .'.php';

print_r($result);
?>

add a note User Contributed Notes http_negotiate_language

sh1nto at eveni dot de 08-Mar-2009 10:49


There is an typo in your function.



You should replace $languageprefix by $langprefix.



Thanks very much for that function!

Anonymous 03-Nov-2008 03:23


as I don't have this function available I tried to write it myself. Maybe useful for someone else, too.



<?php

/* 

  determine which language out of an available set the user prefers most

  

  $available_languages        array with language-tag-strings (must be lowercase) that are available

  $http_accept_language    a HTTP_ACCEPT_LANGUAGE string (read from $_SERVER['HTTP_ACCEPT_LANGUAGE'] if left out)

*/

function prefered_language ($available_languages,$http_accept_language="auto") {

    // if $http_accept_language was left out, read it from the HTTP-Header

    if ($http_accept_language == "auto") $http_accept_language = $_SERVER['HTTP_ACCEPT_LANGUAGE'];



    // standard  for HTTP_ACCEPT_LANGUAGE is defined under 

    // http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4

    // pattern to find is therefore something like this:

    //    1#( language-range [ ";" "q" "=" qvalue ] )

    // where:

    //    language-range  = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )

    //    qvalue         = ( "0" [ "." 0*3DIGIT ] )

    //            | ( "1" [ "." 0*3("0") ] )

    preg_match_all("/([[:alpha:]]{1,8})(-([[:alpha:]|-]{1,8}))?" . 

                   "(\s*;\s*q\s*=\s*(1\.0{0,3}|0\.\d{0,3}))?\s*(,|$)/i", 

                   $http_accept_language, $hits, PREG_SET_ORDER);



    // default language (in case of no hits) is the first in the array

    $bestlang = $available_languages[0];

    $bestqval = 0;



    foreach ($hits as $arr) {

        // read data from the array of this hit

        $langprefix = strtolower ($arr[1]);

        if (!empty($arr[3])) {

            $langrange = strtolower ($arr[3]);

            $language = $langprefix . "-" . $langrange;

        }

        else $language = $langprefix;

        $qvalue = 1.0;

        if (!empty($arr[5])) $qvalue = floatval($arr[5]);

      

        // find q-maximal language  

        if (in_array($language,$available_languages) && ($qvalue > $bestqval)) {

            $bestlang = $language;

            $bestqval = $qvalue;

        }

        // if no direct hit, try the prefix only but decrease q-value by 10% (as http_negotiate_language does)

        else if (in_array($languageprefix,$available_languages) && (($qvalue*0.9) > $bestqval)) {

            $bestlang = $languageprefix;

            $bestqval = $qvalue*0.9;

        }

    }

    return $bestlang;

}

?>

add a note