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<?php namespace Ozzie; use Exception; use ReflectionClass; class Language { const DUTCH = 1; private static $languages_values; public static function getConstName($value) { if (isset(self::$languages_values[$value])) { return self::$languages_values[$value]; } throw new Exception('de value bestaat niet!'); } public static function init() { static $initialized = false; if ( ! $initialized) { $ref_class = new ReflectionClass(self::class); self::$languages_values = array_flip($ref_class->getConstants()); $initialized = true; } } } // ja, dit zet je in het zelfde bestand Language::init(); // nee, dit dan weer niet niet echo Language::getConstName(1), Language::getConstName(42);

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