RobRichards\XMLSecLibs\XMLSecurityKey::getX509Thumbprint PHP Method

Returns: The thumbprint as a lowercase 40-character hexadecimal number, or null if this isn't a X509 certificate.

public getX509Thumbprint ( ) : string
return	string	Lowercase 40-character hexadecimal number of thumbprint

    public function getX509Thumbprint()
    {
        return $this->X509Thumbprint;
    }

XMLSecurityKey