php用curl实现https双向认证

$strurl="https://192.168.6.120/index.html";function gethttpsdata($strurl){$tuCurl = curl_init(); curl_setopt($tuCurl, CURLOPT_URL, $strurl); curl_setopt($tuCurl, CURLOPT_PORT , 443); curl_setopt($tuCurl, CURLOPT_VERBOSE, 0); curl_setopt($tuCurl, CURLOPT_HEADER, 0); curl_setopt($tuCurl, CURLOPT_SSLVERSION, 3); curl_setopt($tuCurl, CURLOPT_SSLCERT, getcwd()."/newcert.pem"); curl_setopt($tuCurl, CURLOPT_SSLCERTPASSWD,"xiaozl");curl_setopt($tuCurl, CURLOPT_SSLCERTTYPE,"PEM");curl_setopt($tuCurl, CURLOPT_SSLKEY, getcwd()."/newkey.pem"); curl_setopt($tuCurl, CURLOPT_SSLKEYPASSWD,"xiaozl");curl_setopt($tuCurl, CURLOPT_SSLKEYTYPE,"PEM"); curl_setopt($tuCurl, CURLOPT_CAINFO, getcwd()."/cacert.pem");  curl_setopt($tuCurl, CURLOPT_POST, 1); curl_setopt($tuCurl, CURLOPT_SSL_VERIFYPEER, 1); curl_setopt($tuCurl, CURLOPT_RETURNTRANSFER, 1); //curl_setopt($tuCurl, CURLOPT_POSTFIELDS, $data); //curl_setopt($tuCurl, CURLOPT_HTTPHEADER, array("Content-Type: text/xml","SOAPAction: \"/soap/action/query\"", "Content-length: ".strlen($data))); $tuData = curl_exec($tuCurl); if(!curl_errno($tuCurl)){   $info = curl_getinfo($tuCurl);  // echo 'Took ' . $info['total_time'] . ' seconds to send a request to ' . $info['url']; } else {   echo 'Curl error: ' . curl_error($tuCurl); } curl_close($tuCurl); echo $tuData; }