Help - Passing multiple parameters and values through URL without exceeds..

I have a concatenated string with the all parameters and all values to make the URL and create a birt report.

I have many parameters with many values each.

But, URL exceeds the length and break the process.

Example of code who make URL string(PHP):

if ( $this->getVersaoBirt() ) {
           $stBirt = "http://" . $http_host . ":".constant('BIRT_PORT')."/viewer_" . str_replace('.','',$this->getVersaoBirt()) . "/";
        } else {
            $stBirt = "http://" . $http_host . ":".constant('BIRT_PORT')."/viewer/";
        }
        $stBirt.= "run?";
        // adiciona nome do rpt - (Add a name to rpt)
        
        //$stBirt .= "reportLayout=" . $stReportLayout;
        $stBirt.= "__report=" . realpath($stBirtLayoutsFolder . $stReportLayout);
        //        $stBirt .= "&" . sessao->id;
        
        // conexao - (connection )
        $stBirt.= "&db_driver=" . urlencode('org.postgresql.Driver') . "";
        $stBirt.= "&db_host=" . urlencode($Con->stHost);
        $stBirt.= "&db_port=" . urlencode($Con->inPort);
        $stBirt.= "&db_user=" . urlencode($Con->stUser);
        $stBirt.= "&db_password=" . urlencode($Con->stPassWord);
        $stBirt.= "&cod_acao=" . Sessao::read('acao');
        $stBirt.= "&exercicio=" . Sessao::getExercicio();
        $stBirt.= "&db_conn_url=" . urlencode("jdbc:postgresql://" . $Con->stHost . ":" . $Con->inPort . "/" . $Con->stDbName . "");

        // varre parametros - (scan parameters)
        foreach($this->arParametros as $parametro) {
            $stBirt.= "&" . $parametro[0] . "=" . urlencode($parametro[1]);

        }
        // formatação numérica para valores na moeda brasileira - (formatting to Brazilian currency )
        $stBirt.= "&__locale=pt_BR";
       
        // formato - (format)
        $stBirtPdf.= $stBirt . "&__format=pdf";
        $stBirtDoc.= $stBirt . "&__format=doc";
        $stBirtXls.= $stBirt . "&__format=xls";
        $stBirt.= "&__format=" . $this->getFormato();

I'm using Birt 2.5 and Viewer 2.5.0.

Anyone can help me to create another way to pass all these parameters to Birt without exceeds the URL or using another method?

Thanks!