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<?php
namespace Larislackers\BinanceApi\Enums;
use Larislackers\BinanceApi\Exception\LarislackersException;
abstract class BasicEnum
{
private static $constCacheArray = NULL;
final private function __construct()
{
throw new LarislackersException('BasicEnum and subclasses cannot be instantiated.');
}
private static function getConstants()
{
if (self::$constCacheArray == NULL) self::$constCacheArray = [];
$calledClass = get_called_class();
if (!array_key_exists($calledClass, self::$constCacheArray)) {
$reflect = new \ReflectionClass($calledClass);
self::$constCacheArray[$calledClass] = $reflect->getConstants();
}
return self::$constCacheArray[$calledClass];
}
public static function isValidName($name, $strict = false)
{
$constants = self::getConstants();
if ($strict) return array_key_exists($name, $constants);
$keys = array_map('strtolower', array_keys($constants));
return in_array(strtolower($name), $keys);
}
public static function isValidValue($value, $strict = true)
{
$values = array_values(self::getConstants());
return in_array($value, $values, $strict);
}
}