微信RSA算法问题

Question

//RAS算法 function RAS($mch_id,$nonce_str,$sign){ $data="<xml> <mch_id>".$mch_id."</mch_id> <nonce_str>".$nonce_str."</nonce_str> <sign>".$sign."</sign> <sign_type>MD5</sign_type> </xml>"; $ch = curl_init (); $MENU_URL="https://fraud.mch.weixin.qq.com/risk/getpublickey"; curl_setopt ( $ch, CURLOPT_URL, $MENU_URL ); curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" ); curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE ); curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE ); //两个证书（必填，请求需要双向证书。） $zs1="./WxpayAPI_php/cert/apiclient_cert.pem"; $zs2="./WxpayAPI_php/cert/apiclient_key.pem"; curl_setopt($ch,CURLOPT_SSLCERT,$zs1); curl_setopt($ch,CURLOPT_SSLKEY,$zs2); curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 ); curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 ); curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data ); curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true ); $info = curl_exec ( $ch ); if (curl_errno ( $ch )) { echo 'Errno' . curl_error ( $ch ); } curl_close ( $ch ); var_dump($info); } 打印出来的是 这个是啥？ 参考文档:https://pay.weixin.qq.com/wik...

Answer 1

返回的xml要解析

Answer 2

返回的是xml，按ctrl+u查看网页源代码可见。