A lightweight PHP library for generating and validating TOTP authentication codes and QR codes compatible with Google Authenticator, Microsoft Authenticator, Authy, 1Password, Bitwarden, and other RFC 6238 authenticator apps.
security qrcode totp google-authenticator multi-factor 2fa rfc-6238 2fa-security 2-factor-authentication php-2fa php-2factor-auth google-authenticator-php php-2-factor-authentication
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Updated
Jul 13, 2026 - PHP