Locale::getDisplayRegion()

locale_get_display_region

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

Returns an appropriately localized display name for region of the input locale

说明

Returns an appropriately localized display name for region of the input locale. If is NULL then the default locale is used.

参数

The locale to return a display region for.

Optional format locale to use to display the region name

返回值

display name of the region for the $locale in the format appropriate for $in_locale.

范例

locale_get_display_region() example

OO example

以上例程会输出：

Italy;
Italie;
Italien

参见

• locale_get_display_name() Returns an appropriately localized display name for the input locale
• locale_get_display_language() Returns an appropriately localized display name for language of the inputlocale
• locale_get_display_script() Returns an appropriately localized display name for script of the input locale
• locale_get_display_variant() Returns an appropriately localized display name for variants of the input locale

You don't have to have a fully-formed locale for the first parameter. This makes the function useful for getting the country name from any locale: 

in fact , I would do exactly the opposite : find the country code (iso3166) from the country name. Found on the web, one solution is to use a table of correspondence between the country code and the country name for each language.
There are too many countries and language code for this type of table.
With a PHP function , the convertion can be performed as well:
function countryNameToISO3166($country_name, $language) {
  if (strlen($language) != 2) {
    //Language must be on 2 caracters
    return NULL;
  }
  //Set uppercase if never
  $language = strtoupper($language);
  $countrycode_list = array('AF', 'AX', 'AL', 'DZ', 'AS', 'AD', 'AO', 'AI', 'AQ', 'AG', 'AR', 'AM', 'AW', 'AU', 'AT', 'AZ', 'BS', 'BH', 'BD', 'BB', 'BY', 'BE', 'BZ', 'BJ', 'BM', 'BT', 'BO', 'BQ', 'BA', 'BW', 'BV', 'BR', 'IO', 'BN', 'BG', 'BF', 'BI', 'KH', 'CM', 'CA', 'CV', 'KY', 'CF', 'TD', 'CL', 'CN', 'CX', 'CC', 'CO', 'KM', 'CG', 'CD', 'CK', 'CR', 'CI', 'HR', 'CU', 'CW', 'CY', 'CZ', 'DK', 'DJ', 'DM', 'DO', 'EC', 'EG', 'SV', 'GQ', 'ER', 'EE', 'ET', 'FK', 'FO', 'FJ', 'FI', 'FR', 'GF', 'PF', 'TF', 'GA', 'GM', 'GE', 'DE', 'GH', 'GI', 'GR', 'GL', 'GD', 'GP', 'GU', 'GT', 'GG', 'GN', 'GW', 'GY', 'HT', 'HM', 'VA', 'HN', 'HK', 'HU', 'IS', 'IN', 'ID', 'IR', 'IQ', 'IE', 'IM', 'IL', 'IT', 'JM', 'JP', 'JE', 'JO', 'KZ', 'KE', 'KI', 'KP', 'KR', 'KW', 'KG', 'LA', 'LV', 'LB', 'LS', 'LR', 'LY', 'LI', 'LT', 'LU', 'MO', 'MK', 'MG', 'MW', 'MY', 'MV', 'ML', 'MT', 'MH', 'MQ', 'MR', 'MU', 'YT', 'MX', 'FM', 'MD', 'MC', 'MN', 'ME', 'MS', 'MA', 'MZ', 'MM', 'NA', 'NR', 'NP', 'NL', 'NC', 'NZ', 'NI', 'NE', 'NG', 'NU', 'NF', 'MP', 'NO', 'OM', 'PK', 'PW', 'PS', 'PA', 'PG', 'PY', 'PE', 'PH', 'PN', 'PL', 'PT', 'PR', 'QA', 'RE', 'RO', 'RU', 'RW', 'BL', 'SH', 'KN', 'LC', 'MF', 'PM', 'VC', 'WS', 'SM', 'ST', 'SA', 'SN', 'RS', 'SC', 'SL', 'SG', 'SX', 'SK', 'SI', 'SB', 'SO', 'ZA', 'GS', 'SS', 'ES', 'LK', 'SD', 'SR', 'SJ', 'SZ', 'SE', 'CH', 'SY', 'TW', 'TJ', 'TZ', 'TH', 'TL', 'TG', 'TK', 'TO', 'TT', 'TN', 'TR', 'TM', 'TC', 'TV', 'UG', 'UA', 'AE', 'GB', 'US', 'UM', 'UY', 'UZ', 'VU', 'VE', 'VN', 'VG', 'VI', 'WF', 'EH', 'YE', 'ZM', 'ZW');
  $ISO3166 = NULL;
  //Loop all country codes
  foreach ($countrycode_list as $countrycode) {
    $locale_cc = Locale::getDisplayRegion('-' . $countrycode, $language);
    //Case insensitive
    if (strcasecmp($country_name, $locale_cc) == 0) {
      $ISO3166 = $countrycode;
      break;
    }
  }
  //return NULL if not found or country code
  return $ISO3166;
}
Tests
$cc=countryNameToISO3166('Costa Rica','US');
echo '
(English) Country code for Costa Rica is '.$cc;
$cc=countryNameToISO3166('Royaume-Uni','FR');
echo '
(Français) Country code for Royaume-Uni is '.$cc;
$cc=countryNameToISO3166('Frankreich','DE');
echo '
(Deutsch) Country code for Frankreich is '.$cc;
//Wrong language
$cc=countryNameToISO3166('Royaume-Uni','US');
echo '
(English) Country code for Royaume-Uni is '.var_dump($cc);
returns
(English) Country code for Costa Rica is CR
(Français) Country code for Royaume-Uni is GB
(Deutsch) Country code for Frankreich is FR
(English) Country code for Royaume-Uni is NULL
Hope it can help someone other
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