rdata = new DNSKEY(); $this->rdata->protocol = $contentArray[0]; $this->rdata->flags = $contentArray[1]; $this->rdata->algorithm = $contentArray[2]; $this->rdata->publickey = $contentArray[3]; } /** * @param DNSKEY $rdata * * @return string */ public function parseContentToApiFormat( $rdata ) { $content = [ $rdata->protocol, $rdata->flags, $rdata->algorithm, trim($rdata->publickey) ]; return implode(' ', $content); } }