最近的一个网站项目，需要实现20万已上在线付款，支付宝和微信都限额，于是只好想办法搞大额支付了，演示你可以参考下这个：http://www.erdangjiade.com/php/2751.html
1、先去申请https://www.95516.com2、支付参数，提交到银联对应接口的所有参数 支付
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%s document.onreadystatechange =function(){if(document.readyState =="complete") { document.pay_form.submit(); } }; HTML;/** * 构建自动提交HTML表单 *@returnstring */publicfunctioncreatePostForm(){$this->params['signature'] =$this->sign(); $input ='';foreach($this->paramsas$key => $item) { $input .="\t\t\n"; }returnsprintf($this->formTemplate,$this->config['frontUrl'], $input); }/** * 验证签名 * 验签规则： * 除signature域之外的所有项目都必须参加验签 * 根据key值按照字典排序，然后用&拼接key=value形式待验签字符串； * 然后对待验签字符串使用sha1算法做摘要； * 用银联公钥对摘要和签名信息做验签操作 * *@throws\Exception *@returnbool */publicfunctionverifySign(){ $publicKey =$this->getVerifyPublicKey(); $verifyArr =$this->filterBeforSign(); ksort($verifyArr); $verifyStr =$this->arrayToString($verifyArr); $verifySha1 = sha1($verifyStr); $signature = base64_decode($this->params['signature']); $result = openssl_verify($verifySha1, $signature, $publicKey);if($result ===-1) {thrownew\Exception('Verify Error:'.openssl_error_string()); }return$result ===1?true:false; }/** * 取签名证书ID(SN) *@returnstring */publicfunctiongetSignCertId(){return$this->getCertIdPfx($this->config['signCertPath']); }/** * 签名数据 * 签名规则: * 除signature域之外的所有项目都必须参加签名 * 根据key值按照字典排序，然后用&拼接key=value形式待签名字符串； * 然后对待签名字符串使用sha1算法做摘要； * 用银联颁发的私钥对摘要做RSA签名操作 * 签名结果用base64编码后放在signature域 * *@throws\InvalidArgumentException *@returnmultitype|string */privatefunctionsign(){ $signData =$this->filterBeforSign(); ksort($signData); $signQueryString =$this->arrayToString($signData);if($this->params['signMethod'] ==01) {//签名之前先用sha1处理//echo $signQueryString;exit;$datasha1 = sha1($signQueryString); $signed =$this->rsaSign($datasha1); }else{thrownew\InvalidArgumentException('Nonsupport Sign Method'); }return$signed; }/** * 数组转换成字符串 *@paramarray $arr *@returnstring */privatefunctionarrayToString($arr){ $str ='';foreach($arras$key => $value) { $str .= $key.'='.$value.'&'; }returnsubstr($str,0, strlen($str) -1); }/** * 过滤待签名数据 * signature域不参加签名 * *@returnarray */privatefunctionfilterBeforSign(){ $tmp =$this->params;unset($tmp['signature']);return$tmp; }/** * RSA签名数据，并base64编码 *@paramstring $data 待签名数据 *@returnmixed */privatefunctionrsaSign($data){ $privatekey =$this->getSignPrivateKey(); $result = openssl_sign($data, $signature, $privatekey);if($result) {returnbase64_encode($signature); }returnfalse; }/** * 取.pfx格式证书ID(SN) *@returnstring */privatefunctiongetCertIdPfx($path){ $pkcs12certdata = file_get_contents($path); openssl_pkcs12_read($pkcs12certdata, $certs,$this->config['signCertPwd']); $x509data = $certs['cert']; openssl_x509_read($x509data); $certdata = openssl_x509_parse($x509data);return$certdata['serialNumber']; }/** * 取.cer格式证书ID(SN) *@returnstring */privatefunctiongetCertIdCer($path){ $x509data = file_get_contents($path); openssl_x509_read($x509data); $certdata = openssl_x509_parse($x509data);return$certdata['serialNumber']; }/** * 取签名证书私钥 *@returnresource */privatefunctiongetSignPrivateKey(){ $pkcs12 = file_get_contents($this->config['signCertPath']); openssl_pkcs12_read($pkcs12, $certs,$this->config['signCertPwd']);return$certs['pkey']; }/** * 取验证签名证书 *@throws\InvalidArgumentException *@returnstring */privatefunctiongetVerifyPublicKey(){//先判断配置的验签证书是否银联返回指定的证书是否一致if($this->getCertIdCer($this->config['verifyCertPath']) !=$this->params['certId']) {thrownew\InvalidArgumentException('Verify sign cert is incorrect'); }returnfile_get_contents($this->config['verifyCertPath']); } } [2].[代码] 配置示例 跳至 [1] [2] [3] [4]配制事例//银联支付设置'unionpay'=> [//测试环境参数'frontUrl'=>'https://101.231.204.80:5000/gateway/api/frontTransReq.do',//前台交易请求地址//'singleQueryUrl' => 'https://101.231.204.80:5000/gateway/api/queryTrans.do', //单笔查询请求地址'signCertPath'=>__DIR__.'/../keys/unionpay/test/sign/700000000000001_acp.pfx',//签名证书路径'signCertPwd'=>'000000',//签名证书密码'verifyCertPath'=>__DIR__.'/../keys/unionpay/test/verify/verify_sign_acp.cer',//验签证书路径'merId'=>'xxxxxxx',//正式环境参数//'frontUrl' => 'https://101.231.204.80:5000/gateway/api/frontTransReq.do', //前台交易请求地址//'singleQueryUrl' => 'https://101.231.204.80:5000/gateway/api/queryTrans.do', //单笔查询请求地址//'signCertPath' => __DIR__.'/../keys/unionpay/test/sign/PM_700000000000001_acp.pfx', //签名证书路径//'signCertPwd' => '000000', //签名证书密码//'verifyCertPath' => __DIR__.'/../keys/unionpay/test/verify/verify_sign_acp.cer', //验签证书路径//'merId' => 'xxxxxxxxx', //商户代码],支付事例$unionPay =newUnionPay(); $unionPay->config = Yii::$app->params['unionpay'];//上面的配置$unionPay->params = ['version'=>'5.0.0',//版本号'encoding'=>'UTF-8',//编码方式'certId'=> $unionPay->getSignCertId(),//证书ID'signature'=>'',//签名'signMethod'=>'01',//签名方式'txnType'=>'01',//交易类型'txnSubType'=>'01',//交易子类'bizType'=>'000201',//产品类型'channelType'=>'08',//渠道类型'frontUrl'=> Url::toRoute(['payment/unionpayreturn'],true),//前台通知地址'backUrl'=> Url::toRoute(['payment/unionpaynotify'],true),//后台通知地址//'frontFailUrl' => Url::toRoute(['payment/unionpayfail'], true), //失败交易前台跳转地址'accessType'=>'0',//接入类型'merId'=> Yii::$app->params['unionpay']['merId'],//商户代码'orderId'=> $orderNo,//商户订单号'txnTime'=> date('YmdHis'),//订单发送时间'txnAmt'=> $sum *100,//交易金额，单位分'currencyCode'=>'156',//交易币种]; $html = $unionPay->createPostForm();异步通知示例$unionPay =newUnionPay(); $unionPay->config = Yii::$app->params['unionpay']; $unionPay->params = Yii::$app->request->post();//银联提交的参数if(empty($unionPay->params)) {return'fail!'; }if($unionPay->verifySign() && $unionPay->params['respCode'] =='00') {//.......}