public function __construct(Identifier $identifier, ContentLength $contentLength, Content $content, array $children = [])
{
parent::__construct($identifier, $contentLength, $content, $children);
$this->nrOfUnusedBits = $nrOfUnusedBits = ord($content->binaryData[0]);
if (!is_numeric($nrOfUnusedBits) || $nrOfUnusedBits < 0) {
throw new Exception('BitString: second parameter needs to be a positive number (or zero)!');
}
}
/**
* Creates a new ASN.1 BitString object.
*
* @param string|int $value Either the hexadecimal value as a string (spaces are allowed - leading 0x is optional) or a numeric value
* @param int $nrOfUnusedBits the number of unused bits in the last octet [optional].
*
* @throws Exception if the second parameter is no positive numeric value
*/
public function __construct($value, $nrOfUnusedBits = 0)
{
parent::__construct($value);
if (!is_numeric($nrOfUnusedBits) || $nrOfUnusedBits < 0) {
throw new Exception('BitString: second parameter needs to be a positive number (or zero)!');
}
$this->nrOfUnusedBits = $nrOfUnusedBits;
}
