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<?php
/**
* A class for querying translated currency names from CLDR data.
*
* @author Niklas Laxström
* @author Ryan Kaldari
* @copyright Copyright © 2007-2012
* @license GPL-2.0-or-later
*/
class CurrencyNames extends CldrNames {
private static $cache = [];
/**
* Get localized currency names for a particular language, using fallback languages for missing
* items.
*
* @param string $code The language to return the list in
* @return array an associative array of currency codes and localized currency names
*/
public static function getNames( $code ) {
// Load currency names localized for the requested language
$names = self::loadLanguage( $code );
// Load missing currency names from fallback languages
$fallbacks = Language::getFallbacksFor( $code );
foreach ( $fallbacks as $fallback ) {
// Overwrite the things in fallback with what we have already
$names = array_merge( self::loadLanguage( $fallback ), $names );
}
return $names;
}
/**
* Load currency names localized for a particular language. Helper function for getNames.
*
* @param string $code The language to return the list in
* @return array an associative array of currency codes and localized currency names
*/
private static function loadLanguage( $code ) {
if ( !isset( self::$cache[$code] ) ) {
/* Load override for wrong or missing entries in cldr */
$override = __DIR__ . '/../LocalNames/' . self::getOverrideFileName( $code );
if ( Language::isValidBuiltInCode( $code ) && file_exists( $override ) ) {
$currencyNames = false;
require $override;
if ( is_array( $currencyNames ) ) {
self::$cache[$code] = $currencyNames;
}
}
$filename = __DIR__ . '/../CldrNames/' . self::getFileName( $code );
if ( Language::isValidBuiltInCode( $code ) && file_exists( $filename ) ) {
$currencyNames = false;
require $filename;
if ( is_array( $currencyNames ) ) {
if ( isset( self::$cache[$code] ) ) {
// Add to existing list of localized currency names
self::$cache[$code] = self::$cache[$code] + $currencyNames;
} else {
// No list exists, so create it
self::$cache[$code] = $currencyNames;
}
}
} else {
wfDebug( __METHOD__ . ": Unable to load currency names for $filename\n" );
}
}
return isset( self::$cache[$code] ) ? self::$cache[$code] : [];
}
}
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