NFePHP\Extras\Danfe::pGeraChaveAdicionalDeContingencia PHP Method

    protected function pGeraChaveAdicionalDeContingencia()
    {
        //cUF tpEmis CNPJ vNF ICMSp ICMSs DD  DV
        // Quantidade de caracteres  02   01      14  14    01    01  02 01
        $forma = "%02d%d%s%014d%01d%01d%02d";
        $cUF = $this->ide->getElementsByTagName('cUF')->item(0)->nodeValue;
        $CNPJ = "00000000000000" . $this->emit->getElementsByTagName('CNPJ')->item(0)->nodeValue;
        $CNPJ = substr($CNPJ, -14);
        $vNF = $this->ICMSTot->getElementsByTagName("vNF")->item(0)->nodeValue * 100;
        $vICMS = $this->ICMSTot->getElementsByTagName("vICMS")->item(0)->nodeValue;
        if ($vICMS > 0) {
            $vICMS = 1;
        }
        $icmss = $this->ICMSTot->getElementsByTagName("vBC")->item(0)->nodeValue;
        if ($icmss > 0) {
            $icmss = 1;
        }
        $dEmi = !empty($this->ide->getElementsByTagName("dEmi")->item(0)->nodeValue) ? $this->ide->getElementsByTagName("dEmi")->item(0)->nodeValue : '';
        if ($dEmi == '') {
            $dEmi = !empty($this->ide->getElementsByTagName("dhEmi")->item(0)->nodeValue) ? $this->ide->getElementsByTagName("dhEmi")->item(0)->nodeValue : '';
            $aDemi = explode('T', $dEmi);
            $dEmi = $aDemi[0];
        }
        $dd = $dEmi;
        $rpos = strrpos($dd, '-');
        $dd = substr($dd, $rpos + 1);
        $chave = sprintf($forma, $cUF, $this->tpEmis, $CNPJ, $vNF, $vICMS, $icmss, $dd);
        $chave = $chave . $this->pModulo11($chave);
        return $chave;
    }