Çözüm PHP ile tarayıcı dilini çekme

$browser_lang = !empty($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? strtok(strip_tags($_SERVER['HTTP_ACCEPT_LANGUAGE']), ',') : '';
$browser_lang = substr($browser_lang, 0, 2);
if ($browser_lang == "tr"){
    include("lang_tr.php");
}else{
    include("lang_en.php");
}

    af_NA: "Afrikaans (Namibia)",
    af_ZA: "Afrikaans (South Africa)",
    af: "Afrikaans",
    ak_GH: "Akan (Ghana)",
    ak: "Akan",
    sq_AL: "Albanian (Albania)",
    sq: "Albanian",
    am_ET: "Amharic (Ethiopia)",
    am: "Amharic",
    ar_DZ: "Arabic (Algeria)",
    ar_BH: "Arabic (Bahrain)",
    ar_EG: "Arabic (Egypt)",
    ar_IQ: "Arabic (Iraq)",
    ar_JO: "Arabic (Jordan)",
    ar_KW: "Arabic (Kuwait)",
    ar_LB: "Arabic (Lebanon)",
    ar_LY: "Arabic (Libya)",
    ar_MA: "Arabic (Morocco)",
    ar_OM: "Arabic (Oman)",
    ar_QA: "Arabic (Qatar)",
    ar_SA: "Arabic (Saudi Arabia)",
    ar_SD: "Arabic (Sudan)",
    ar_SY: "Arabic (Syria)",
    ar_TN: "Arabic (Tunisia)",
    ar_AE: "Arabic (United Arab Emirates)",
    ar_YE: "Arabic (Yemen)",
    ar: "Arabic",
    hy_AM: "Armenian (Armenia)",
    hy: "Armenian",
    as_IN: "Assamese (India)",
    as: "Assamese",
    asa_TZ: "Asu (Tanzania)",
    asa: "Asu",
    az_Cyrl: "Azerbaijani (Cyrillic)",
    az_Cyrl_AZ: "Azerbaijani (Cyrillic, Azerbaijan)",
    az_Latn: "Azerbaijani (Latin)",
    az_Latn_AZ: "Azerbaijani (Latin, Azerbaijan)",
    az: "Azerbaijani",
    bm_ML: "Bambara (Mali)",
    bm: "Bambara",
    eu_ES: "Basque (Spain)",
    eu: "Basque",
    be_BY: "Belarusian (Belarus)",
    be: "Belarusian",
    bem_ZM: "Bemba (Zambia)",
    bem: "Bemba",
    bez_TZ: "Bena (Tanzania)",
    bez: "Bena",
    bn_BD: "Bengali (Bangladesh)",
    bn_IN: "Bengali (India)",
    bn: "Bengali",
    bs_BA: "Bosnian (Bosnia and Herzegovina)",
    bs: "Bosnian",
    bg_BG: "Bulgarian (Bulgaria)",
    bg: "Bulgarian",
    my_MM: "Burmese (Myanmar [Burma])",
    my: "Burmese",
    yue_Hant_HK: "Cantonese (Traditional, Hong Kong SAR China)",
    ca_ES: "Catalan (Spain)",
    ca: "Catalan",
    tzm_Latn: "Central Morocco Tamazight (Latin)",
    tzm_Latn_MA: "Central Morocco Tamazight (Latin, Morocco)",
    tzm: "Central Morocco Tamazight",
    chr_US: "Cherokee (United States)",
    chr: "Cherokee",
    cgg_UG: "Chiga (Uganda)",
    cgg: "Chiga",
    zh_Hans: "Chinese (Simplified Han)",
    zh_Hans_CN: "Chinese (Simplified Han, China)",
    zh_Hans_HK: "Chinese (Simplified Han, Hong Kong SAR China)",
    zh_Hans_MO: "Chinese (Simplified Han, Macau SAR China)",
    zh_Hans_SG: "Chinese (Simplified Han, Singapore)",
    zh_Hant: "Chinese (Traditional Han)",
    zh_Hant_HK: "Chinese (Traditional Han, Hong Kong SAR China)",
    zh_Hant_MO: "Chinese (Traditional Han, Macau SAR China)",
    zh_Hant_TW: "Chinese (Traditional Han, Taiwan)",
    zh: "Chinese",
    kw_GB: "Cornish (United Kingdom)",
    kw: "Cornish",
    hr_HR: "Croatian (Croatia)",
    hr: "Croatian",
    cs_CZ: "Czech (Czech Republic)",
    cs: "Czech",
    da_DK: "Danish (Denmark)",
    da: "Danish",
    nl_BE: "Dutch (Belgium)",
    nl_NL: "Dutch (Netherlands)",
    nl: "Dutch",
    ebu_KE: "Embu (Kenya)",
    ebu: "Embu",
    en_AS: "English (American Samoa)",
    en_AU: "English (Australia)",
    en_BE: "English (Belgium)",
    en_BZ: "English (Belize)",
    en_BW: "English (Botswana)",
    en_CA: "English (Canada)",
    en_GU: "English (Guam)",
    en_HK: "English (Hong Kong SAR China)",
    en_IN: "English (India)",
    en_IE: "English (Ireland)",
    en_IL: "English (Israel)",
    en_JM: "English (Jamaica)",
    en_MT: "English (Malta)",
    en_MH: "English (Marshall Islands)",
    en_MU: "English (Mauritius)",
    en_NA: "English (Namibia)",
    en_NZ: "English (New Zealand)",
    en_MP: "English (Northern Mariana Islands)",
    en_PK: "English (Pakistan)",
    en_PH: "English (Philippines)",
    en_SG: "English (Singapore)",
    en_ZA: "English (South Africa)",
    en_TT: "English (Trinidad and Tobago)",
    en_UM: "English (U.S. Minor Outlying Islands)",
    en_VI: "English (U.S. Virgin Islands)",
    en_GB: "English (United Kingdom)",
    en_US: "English (United States)",
    en_ZW: "English (Zimbabwe)",
    en: "English",
    eo: "Esperanto",
    et_EE: "Estonian (Estonia)",
    et: "Estonian",
    ee_GH: "Ewe (Ghana)",
    ee_TG: "Ewe (Togo)",
    ee: "Ewe",
    fo_FO: "Faroese (Faroe Islands)",
    fo: "Faroese",
    fil_PH: "Filipino (Philippines)",
    fil: "Filipino",
    fi_FI: "Finnish (Finland)",
    fi: "Finnish",
    fr_BE: "French (Belgium)",
    fr_BJ: "French (Benin)",
    fr_BF: "French (Burkina Faso)",
    fr_BI: "French (Burundi)",
    fr_CM: "French (Cameroon)",
    fr_CA: "French (Canada)",
    fr_CF: "French (Central African Republic)",
    fr_TD: "French (Chad)",
    fr_KM: "French (Comoros)",
    fr_CG: "French (Congo - Brazzaville)",
    fr_CD: "French (Congo - Kinshasa)",
    fr_CI: "French (Côte d’Ivoire)",
    fr_DJ: "French (Djibouti)",
    fr_GQ: "French (Equatorial Guinea)",
    fr_FR: "French (France)",
    fr_GA: "French (Gabon)",
    fr_GP: "French (Guadeloupe)",
    fr_GN: "French (Guinea)",
    fr_LU: "French (Luxembourg)",
    fr_MG: "French (Madagascar)",
    fr_ML: "French (Mali)",
    fr_MQ: "French (Martinique)",
    fr_MC: "French (Monaco)",
    fr_NE: "French (Niger)",
    fr_RW: "French (Rwanda)",
    fr_RE: "French (Réunion)",
    fr_BL: "French (Saint Barthélemy)",
    fr_MF: "French (Saint Martin)",
    fr_SN: "French (Senegal)",
    fr_CH: "French (Switzerland)",
    fr_TG: "French (Togo)",
    fr: "French",
    ff_SN: "Fulah (Senegal)",
    ff: "Fulah",
    gl_ES: "Galician (Spain)",
    gl: "Galician",
    lg_UG: "Ganda (Uganda)",
    lg: "Ganda",
    ka_GE: "Georgian (Georgia)",
    ka: "Georgian",
    de_AT: "German (Austria)",
    de_BE: "German (Belgium)",
    de_DE: "German (Germany)",
    de_LI: "German (Liechtenstein)",
    de_LU: "German (Luxembourg)",
    de_CH: "German (Switzerland)",
    de: "German",
    el_CY: "Greek (Cyprus)",
    el_GR: "Greek (Greece)",
    el: "Greek",
    gu_IN: "Gujarati (India)",
    gu: "Gujarati",
    guz_KE: "Gusii (Kenya)",
    guz: "Gusii",
    ha_Latn: "Hausa (Latin)",
    ha_Latn_GH: "Hausa (Latin, Ghana)",
    ha_Latn_NE: "Hausa (Latin, Niger)",
    ha_Latn_NG: "Hausa (Latin, Nigeria)",
    ha: "Hausa",
    haw_US: "Hawaiian (United States)",
    haw: "Hawaiian",
    he_IL: "Hebrew (Israel)",
    he: "Hebrew",
    hi_IN: "Hindi (India)",
    hi: "Hindi",
    hu_HU: "Hungarian (Hungary)",
    hu: "Hungarian",
    is_IS: "Icelandic (Iceland)",
    is: "Icelandic",
    ig_NG: "Igbo (Nigeria)",
    ig: "Igbo",
    id_ID: "Indonesian (Indonesia)",
    id: "Indonesian",
    ga_IE: "Irish (Ireland)",
    ga: "Irish",
    it_IT: "Italian (Italy)",
    it_CH: "Italian (Switzerland)",
    it: "Italian",
    ja_JP: "Japanese (Japan)",
    ja: "Japanese",
    kea_CV: "Kabuverdianu (Cape Verde)",
    kea: "Kabuverdianu",
    kab_DZ: "Kabyle (Algeria)",
    kab: "Kabyle",
    kl_GL: "Kalaallisut (Greenland)",
    kl: "Kalaallisut",
    kln_KE: "Kalenjin (Kenya)",
    kln: "Kalenjin",
    kam_KE: "Kamba (Kenya)",
    kam: "Kamba",
    kn_IN: "Kannada (India)",
    kn: "Kannada",
    kk_Cyrl: "Kazakh (Cyrillic)",
    kk_Cyrl_KZ: "Kazakh (Cyrillic, Kazakhstan)",
    kk: "Kazakh",
    km_KH: "Khmer (Cambodia)",
    km: "Khmer",
    ki_KE: "Kikuyu (Kenya)",
    ki: "Kikuyu",
    rw_RW: "Kinyarwanda (Rwanda)",
    rw: "Kinyarwanda",
    kok_IN: "Konkani (India)",
    kok: "Konkani",
    ko_KR: "Korean (South Korea)",
    ko: "Korean",
    khq_ML: "Koyra Chiini (Mali)",
    khq: "Koyra Chiini",
    ses_ML: "Koyraboro Senni (Mali)",
    ses: "Koyraboro Senni",
    lag_TZ: "Langi (Tanzania)",
    lag: "Langi",
    lv_LV: "Latvian (Latvia)",
    lv: "Latvian",
    lt_LT: "Lithuanian (Lithuania)",
    lt: "Lithuanian",
    luo_KE: "Luo (Kenya)",
    luo: "Luo",
    luy_KE: "Luyia (Kenya)",
    luy: "Luyia",
    mk_MK: "Macedonian (Macedonia)",
    mk: "Macedonian",
    jmc_TZ: "Machame (Tanzania)",
    jmc: "Machame",
    kde_TZ: "Makonde (Tanzania)",
    kde: "Makonde",
    mg_MG: "Malagasy (Madagascar)",
    mg: "Malagasy",
    ms_BN: "Malay (Brunei)",
    ms_MY: "Malay (Malaysia)",
    ms: "Malay",
    ml_IN: "Malayalam (India)",
    ml: "Malayalam",
    mt_MT: "Maltese (Malta)",
    mt: "Maltese",
    gv_GB: "Manx (United Kingdom)",
    gv: "Manx",
    mr_IN: "Marathi (India)",
    mr: "Marathi",
    mas_KE: "Masai (Kenya)",
    mas_TZ: "Masai (Tanzania)",
    mas: "Masai",
    mer_KE: "Meru (Kenya)",
    mer: "Meru",
    mfe_MU: "Morisyen (Mauritius)",
    mfe: "Morisyen",
    naq_NA: "Nama (Namibia)",
    naq: "Nama",
    ne_IN: "Nepali (India)",
    ne_NP: "Nepali (Nepal)",
    ne: "Nepali",
    nd_ZW: "North Ndebele (Zimbabwe)",
    nd: "North Ndebele",
    nb_NO: "Norwegian Bokmål (Norway)",
    nb: "Norwegian Bokmål",
    nn_NO: "Norwegian Nynorsk (Norway)",
    nn: "Norwegian Nynorsk",
    nyn_UG: "Nyankole (Uganda)",
    nyn: "Nyankole",
    or_IN: "Oriya (India)",
    or: "Oriya",
    om_ET: "Oromo (Ethiopia)",
    om_KE: "Oromo (Kenya)",
    om: "Oromo",
    ps_AF: "Pashto (Afghanistan)",
    ps: "Pashto",
    fa_AF: "Persian (Afghanistan)",
    fa_IR: "Persian (Iran)",
    fa: "Persian",
    pl_PL: "Polish (Poland)",
    pl: "Polish",
    pt_BR: "Portuguese (Brazil)",
    pt_GW: "Portuguese (Guinea-Bissau)",
    pt_MZ: "Portuguese (Mozambique)",
    pt_PT: "Portuguese (Portugal)",
    pt: "Portuguese",
    pa_Arab: "Punjabi (Arabic)",
    pa_Arab_PK: "Punjabi (Arabic, Pakistan)",
    pa_Guru: "Punjabi (Gurmukhi)",
    pa_Guru_IN: "Punjabi (Gurmukhi, India)",
    pa: "Punjabi",
    ro_MD: "Romanian (Moldova)",
    ro_RO: "Romanian (Romania)",
    ro: "Romanian",
    rm_CH: "Romansh (Switzerland)",
    rm: "Romansh",
    rof_TZ: "Rombo (Tanzania)",
    rof: "Rombo",
    ru_MD: "Russian (Moldova)",
    ru_RU: "Russian (Russia)",
    ru_UA: "Russian (Ukraine)",
    ru: "Russian",
    rwk_TZ: "Rwa (Tanzania)",
    rwk: "Rwa",
    saq_KE: "Samburu (Kenya)",
    saq: "Samburu",
    sg_CF: "Sango (Central African Republic)",
    sg: "Sango",
    seh_MZ: "Sena (Mozambique)",
    seh: "Sena",
    sr_Cyrl: "Serbian (Cyrillic)",
    sr_Cyrl_BA: "Serbian (Cyrillic, Bosnia and Herzegovina)",
    sr_Cyrl_ME: "Serbian (Cyrillic, Montenegro)",
    sr_Cyrl_RS: "Serbian (Cyrillic, Serbia)",
    sr_Latn: "Serbian (Latin)",
    sr_Latn_BA: "Serbian (Latin, Bosnia and Herzegovina)",
    sr_Latn_ME: "Serbian (Latin, Montenegro)",
    sr_Latn_RS: "Serbian (Latin, Serbia)",
    sr: "Serbian",
    sn_ZW: "Shona (Zimbabwe)",
    sn: "Shona",
    ii_CN: "Sichuan Yi (China)",
    ii: "Sichuan Yi",
    si_LK: "Sinhala (Sri Lanka)",
    si: "Sinhala",
    sk_SK: "Slovak (Slovakia)",
    sk: "Slovak",
    sl_SI: "Slovenian (Slovenia)",
    sl: "Slovenian",
    xog_UG: "Soga (Uganda)",
    xog: "Soga",
    so_DJ: "Somali (Djibouti)",
    so_ET: "Somali (Ethiopia)",
    so_KE: "Somali (Kenya)",
    so_SO: "Somali (Somalia)",
    so: "Somali",
    es_AR: "Spanish (Argentina)",
    es_BO: "Spanish (Bolivia)",
    es_CL: "Spanish (Chile)",
    es_CO: "Spanish (Colombia)",
    es_CR: "Spanish (Costa Rica)",
    es_DO: "Spanish (Dominican Republic)",
    es_EC: "Spanish (Ecuador)",
    es_SV: "Spanish (El Salvador)",
    es_GQ: "Spanish (Equatorial Guinea)",
    es_GT: "Spanish (Guatemala)",
    es_HN: "Spanish (Honduras)",
    es_419: "Spanish (Latin America)",
    es_MX: "Spanish (Mexico)",
    es_NI: "Spanish (Nicaragua)",
    es_PA: "Spanish (Panama)",
    es_PY: "Spanish (Paraguay)",
    es_PE: "Spanish (Peru)",
    es_PR: "Spanish (Puerto Rico)",
    es_ES: "Spanish (Spain)",
    es_US: "Spanish (United States)",
    es_UY: "Spanish (Uruguay)",
    es_VE: "Spanish (Venezuela)",
    es: "Spanish",
    sw_KE: "Swahili (Kenya)",
    sw_TZ: "Swahili (Tanzania)",
    sw: "Swahili",
    sv_FI: "Swedish (Finland)",
    sv_SE: "Swedish (Sweden)",
    sv: "Swedish",
    gsw_CH: "Swiss German (Switzerland)",
    gsw: "Swiss German",
    shi_Latn: "Tachelhit (Latin)",
    shi_Latn_MA: "Tachelhit (Latin, Morocco)",
    shi_Tfng: "Tachelhit (Tifinagh)",
    shi_Tfng_MA: "Tachelhit (Tifinagh, Morocco)",
    shi: "Tachelhit",
    dav_KE: "Taita (Kenya)",
    dav: "Taita",
    ta_IN: "Tamil (India)",
    ta_LK: "Tamil (Sri Lanka)",
    ta: "Tamil",
    te_IN: "Telugu (India)",
    te: "Telugu",
    teo_KE: "Teso (Kenya)",
    teo_UG: "Teso (Uganda)",
    teo: "Teso",
    th_TH: "Thai (Thailand)",
    th: "Thai",
    bo_CN: "Tibetan (China)",
    bo_IN: "Tibetan (India)",
    bo: "Tibetan",
    ti_ER: "Tigrinya (Eritrea)",
    ti_ET: "Tigrinya (Ethiopia)",
    ti: "Tigrinya",
    to_TO: "Tonga (Tonga)",
    to: "Tonga",
    tr_TR: "Turkish (Turkey)",
    tr: "Turkish",
    uk_UA: "Ukrainian (Ukraine)",
    uk: "Ukrainian",
    ur_IN: "Urdu (India)",
    ur_PK: "Urdu (Pakistan)",
    ur: "Urdu",
    uz_Arab: "Uzbek (Arabic)",
    uz_Arab_AF: "Uzbek (Arabic, Afghanistan)",
    uz_Cyrl: "Uzbek (Cyrillic)",
    uz_Cyrl_UZ: "Uzbek (Cyrillic, Uzbekistan)",
    uz_Latn: "Uzbek (Latin)",
    uz_Latn_UZ: "Uzbek (Latin, Uzbekistan)",
    uz: "Uzbek",
    vi_VN: "Vietnamese (Vietnam)",
    vi: "Vietnamese",
    vun_TZ: "Vunjo (Tanzania)",
    vun: "Vunjo",
    cy_GB: "Welsh (United Kingdom)",
    cy: "Welsh",
    yo_NG: "Yoruba (Nigeria)",
    yo: "Yoruba",
    zu_ZA: "Zulu (South Africa)",
    zu: "Zulu"