可能的重复项：
用于检测浏览器语言偏好
的 JavaScript 检测 PHP
中的浏览器语言 检测语言的最佳方法是什么？
我创建了一个世界上任何人都可以访问的网站。
因此，我需要一种方法来大致了解用户的语言，而无需询问他们。
显然，还有一个链接可以通过cookie设置语言。
您可以使用每个浏览器发送的Accept-Language HTTP请求标头。
我发现这个函数可以解析它：
function getPreferredLanguage() {
$langs = array();
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
// break up string into pieces (languages and q factors)
preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)'s*(;'s*q's*='s*(1|0'.[0-9]+))?/i',
$_SERVER['HTTP_ACCEPT_LANGUAGE'], $lang_parse);
if (count($lang_parse[1])) {
// create a list like "en" => 0.8
$langs = array_combine($lang_parse[1], $lang_parse[4]);
// set default to 1 for any without q factor
foreach ($langs as $lang => $val) {
if ($val === '') $langs[$lang] = 1;
}
// sort list based on value
arsort($langs, SORT_NUMERIC);
}
}
//extract most important (first)
foreach ($langs as $lang => $val) { break; }
//if complex language simplify it
if (stristr($lang,"-")) {$tmp = explode("-",$lang); $lang = $tmp[0]; }
return $lang;
}
$language = getPreferredLanguage();
http://snipplr.com/view.php?codeview&id=24897
如果您想要它的完整版本（例如 English ），您可以使用以下数组：
$languageCodes = array(
"aa" => "Afar",
"ab" => "Abkhazian",
"ae" => "Avestan",
"af" => "Afrikaans",
"ak" => "Akan",
"am" => "Amharic",
"an" => "Aragonese",
"ar" => "Arabic",
"as" => "Assamese",
"av" => "Avaric",
"ay" => "Aymara",
"az" => "Azerbaijani",
"ba" => "Bashkir",
"be" => "Belarusian",
"bg" => "Bulgarian",
"bh" => "Bihari",
"bi" => "Bislama",
"bm" => "Bambara",
"bn" => "Bengali",
"bo" => "Tibetan",
"br" => "Breton",
"bs" => "Bosnian",
"ca" => "Catalan",
"ce" => "Chechen",
"ch" => "Chamorro",
"co" => "Corsican",
"cr" => "Cree",
"cs" => "Czech",
"cu" => "Church Slavic",
"cv" => "Chuvash",
"cy" => "Welsh",
"da" => "Danish",
"de" => "German",
"dv" => "Divehi",
"dz" => "Dzongkha",
"ee" => "Ewe",
"el" => "Greek",
"en" => "English",
"eo" => "Esperanto",
"es" => "Spanish",
"et" => "Estonian",
"eu" => "Basque",
"fa" => "Persian",
"ff" => "Fulah",
"fi" => "Finnish",
"fj" => "Fijian",
"fo" => "Faroese",
"fr" => "French",
"fy" => "Western Frisian",
"ga" => "Irish",
"gd" => "Scottish Gaelic",
"gl" => "Galician",
"gn" => "Guarani",
"gu" => "Gujarati",
"gv" => "Manx",
"ha" => "Hausa",
"he" => "Hebrew",
"hi" => "Hindi",
"ho" => "Hiri Motu",
"hr" => "Croatian",
"ht" => "Haitian",
"hu" => "Hungarian",
"hy" => "Armenian",
"hz" => "Herero",
"ia" => "Interlingua (International Auxiliary Language Association)",
"id" => "Indonesian",
"ie" => "Interlingue",
"ig" => "Igbo",
"ii" => "Sichuan Yi",
"ik" => "Inupiaq",
"io" => "Ido",
"is" => "Icelandic",
"it" => "Italian",
"iu" => "Inuktitut",
"ja" => "Japanese",
"jv" => "Javanese",
"ka" => "Georgian",
"kg" => "Kongo",
"ki" => "Kikuyu",
"kj" => "Kwanyama",
"kk" => "Kazakh",
"kl" => "Kalaallisut",
"km" => "Khmer",
"kn" => "Kannada",
"ko" => "Korean",
"kr" => "Kanuri",
"ks" => "Kashmiri",
"ku" => "Kurdish",
"kv" => "Komi",
"kw" => "Cornish",
"ky" => "Kirghiz",
"la" => "Latin",
"lb" => "Luxembourgish",
"lg" => "Ganda",
"li" => "Limburgish",
"ln" => "Lingala",
"lo" => "Lao",
"lt" => "Lithuanian",
"lu" => "Luba-Katanga",
"lv" => "Latvian",
"mg" => "Malagasy",
"mh" => "Marshallese",
"mi" => "Maori",
"mk" => "Macedonian",
"ml" => "Malayalam",
"mn" => "Mongolian",
"mr" => "Marathi",
"ms" => "Malay",
"mt" => "Maltese",
"my" => "Burmese",
"na" => "Nauru",
"nb" => "Norwegian Bokmal",
"nd" => "North Ndebele",
"ne" => "Nepali",
"ng" => "Ndonga",
"nl" => "Dutch",
"nn" => "Norwegian Nynorsk",
"no" => "Norwegian",
"nr" => "South Ndebele",
"nv" => "Navajo",
"ny" => "Chichewa",
"oc" => "Occitan",
"oj" => "Ojibwa",
"om" => "Oromo",
"or" => "Oriya",
"os" => "Ossetian",
"pa" => "Panjabi",
"pi" => "Pali",
"pl" => "Polish",
"ps" => "Pashto",
"pt" => "Portuguese",
"qu" => "Quechua",
"rm" => "Raeto-Romance",
"rn" => "Kirundi",
"ro" => "Romanian",
"ru" => "Russian",
"rw" => "Kinyarwanda",
"sa" => "Sanskrit",
"sc" => "Sardinian",
"sd" => "Sindhi",
"se" => "Northern Sami",
"sg" => "Sango",
"si" => "Sinhala",
"sk" => "Slovak",
"sl" => "Slovenian",
"sm" => "Samoan",
"sn" => "Shona",
"so" => "Somali",
"sq" => "Albanian",
"sr" => "Serbian",
"ss" => "Swati",
"st" => "Southern Sotho",
"su" => "Sundanese",
"sv" => "Swedish",
"sw" => "Swahili",
"ta" => "Tamil",
"te" => "Telugu",
"tg" => "Tajik",
"th" => "Thai",
"ti" => "Tigrinya",
"tk" => "Turkmen",
"tl" => "Tagalog",
"tn" => "Tswana",
"to" => "Tonga",
"tr" => "Turkish",
"ts" => "Tsonga",
"tt" => "Tatar",
"tw" => "Twi",
"ty" => "Tahitian",
"ug" => "Uighur",
"uk" => "Ukrainian",
"ur" => "Urdu",
"uz" => "Uzbek",
"ve" => "Venda",
"vi" => "Vietnamese",
"vo" => "Volapuk",
"wa" => "Walloon",
"wo" => "Wolof",
"xh" => "Xhosa",
"yi" => "Yiddish",
"yo" => "Yoruba",
"za" => "Zhuang",
"zh" => "Chinese",
"zu" => "Zulu"
);
http://www.fractalizer.ru/frpost_267/php-array-of-iso-639-1-language-codes-names/
据我所知，最好的方法是检查"接受语言"HTTP标头：
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) {
// parse it and retrieve language
}
检查用户浏览器发送的标头"接受语言"。
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
有关标头格式的更多详细信息，请参阅第 14.4 节。
看看
$_SERVER['HTTP_ACCEPT_LANGUAGE']
你也可以做类似的事情substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);获得一个"id"，比如
- 法文
- 它
- zh
- 等等....
在 Accept-Language 标头旁边，仅使用 javascript，您可以通过 navigator.language 获取浏览器使用的语言（但它当然不是很可靠）
或者，在现代浏览器上使用HTML5 API，您可以检测用户geolocation
是的，您可以使用Accept-Language HTTP 标头。这篇 w3 文章涵盖了所有问题，并提到您还应该设置 cookie 或等于以允许覆盖该"默认语言"。