DB_dsql::getOne PHP Méthode

You can also simply cast your DSQL into string to get this value echo $dsql;

public getOne ( ) : string
Résultat	string	Value of first column in first row

    public function getOne()
    {
        $res = $this->getRow();
        $this->rewind();
        $this->stmt = null;
        return $res[0];
    }