Authenticate user provided passphrase against previously stored passphrase hash

authenticatePassphrase

/**
 * authenticatePassphrase
 * 
 * Authenticate user provided passphrase against previously stored passphrase hash
 * 
 * @author https://gist.github.com/dirte
 * @access public
 * @param string $frmPassphrase
 * @param string $dbPassphrase
 * @return boolean
 */
public function authenticatePassphrase($frmPassphrase, $dbPassphrase) {
    if (crypt($frmPassphrase, $dbPassphrase) == $dbPassphrase) {
        // User authenticated
        return true;
    } else {
        return false;
    }
}