OtpAlgorithm::generateUri

public function generateUri($label, array $opts = [])
{
	$positionalOpts = [
		// Don't change order!
		'secret' => Base32::encode($this->getSecret()),
	];

	$opts['algorithm'] = $this->getDigest();
	// Digest must be in upper case for some OTP apps (e.g. Google Authenticator for iOS)
	$opts['algorithm'] = mb_strtoupper($opts['algorithm']);
	$opts['digits'] = $this->getDigits();

	ksort($opts);

	// Some devices require a specific order for some parameters (e.g. Microsoft Authenticator require "secret" at first place %) )
	$opts = array_merge(
		$positionalOpts,
		$opts
	);

	$params = http_build_query($opts, '', '&', PHP_QUERY_RFC3986);

	return sprintf(
		'%s://%s/%s?%s',
		$this->getAppScheme(),
		$this->getType(),
		rawurlencode($label),
		$params
	);
}