ParameterTable::getLegacyMap

static function getLegacyMap(): array
{
	$constants = (new ReflectionClass(self::class))->getReflectionConstants();
	$map = [];
	foreach ($constants as $constant)
	{
		if (
			$constant->class === self::class
			&& mb_strrpos($constant->getName(), self::PREFIX_PARAM) === 0
		)
		{
			$map[$constant->getValue()] = $constant->getName();
		}
	}
	return $map;
}