网上的很多PHP支付宝支付接入教程都颇为复杂，且需要配置和引入较多的文件，本人通过整理后给出一个单文件版的，希望可以给各位想接入支付宝支付的带来些许帮助和借鉴意义。

推荐：《PHP视频教程》

一个PHP文件搞定支付宝系列：https://github.com/dedemao/alipay

一个PHP文件搞定微信支付系列：https://github.com/dedemao/weixinPay

在手机浏览器下打开实现效果

在微信中打开实现效果

注：兼容微信浏览器需依赖支付宝官方提供的demo（alipay_in_weixin_demo）中的两个文件，即：ap.js及pay.htm

环境依赖

PHP5.0以上，且需要开启CURL服务、SSL服务。

如需兼容微信浏览器，还需依赖ap.js及pay.htm。

注意事项

1.文件开头的配置信息必须完善 2.商户私钥需填写对应签名算法类型的私钥，如何生成密钥参考： 2.1 https://docs.open.alipay.com/291/105971 2.2 https://docs.open.alipay.com/200/105310

代码

<?php header('Content-type:text/html; Charset=utf-8'); $appid = 'xxxxx';  //https://open.alipay.com 账户中心->密钥管理->开放平台密钥，填写添加了电脑网站支付的应用的APPID $returnUrl = 'http://www.xxx.com/alipay/return.php';     //付款成功后的同步回调地址 $notifyUrl = 'http://www.xxx.com/alipay/notify.php';     //付款成功后的异步回调地址 $outTradeNo = uniqid();     //你自己的商品订单号 $payAmount = 0.01;          //付款金额，单位:元 $orderName = '支付测试';    //订单标题 $signType = 'RSA2';       //签名算法类型，支持RSA2和RSA，推荐使用RSA2 //商户私钥，填写对应签名算法类型的私钥，如何生成密钥参考：https://docs.open.alipay.com/291/105971和https://docs.open.alipay.com/200/105310 $saPrivateKey='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'; $aliPay = new AlipayService($appid,$returnUrl,$notifyUrl,$saPrivateKey); $payConfigs = $aliPay->doPay($payAmount,$outTradeNo,$orderName,$returnUrl,$notifyUrl); class AlipayService {     protected $appId;     protected $returnUrl;     protected $notifyUrl;     protected $charset;     //私钥值     protected $rsaPrivateKey;     public function __construct($appid, $returnUrl, $notifyUrl,$saPrivateKey)     {         $this->appId = $appid;         $this->returnUrl = $returnUrl;         $this->notifyUrl = $notifyUrl;         $this->charset = 'utf8';         $this->rsaPrivateKey=$saPrivateKey;     }     /**      * 发起订单      * @param float $totalFee 收款总费用 单位元      * @param string $outTradeNo 唯一的订单号      * @param string $orderName 订单名称      * @param string $notifyUrl 支付结果通知url 不要有问号      * @param string $timestamp 订单发起时间      * @return array      */     public function doPay($totalFee, $outTradeNo, $orderName, $returnUrl,$notifyUrl)     {         //请求参数         $requestConfigs = array(             'out_trade_no'=>$outTradeNo,             'product_code'=>'QUICK_WAP_WAY',             'total_amount'=>$totalFee, //单位 元             'subject'=>$orderName,  //订单标题         );         $commonConfigs = array(             //公共参数             'app_id' => $this->appId,             'method' => 'alipay.trade.wap.pay',             //接口名称             'format' => 'JSON',             'return_url' => $returnUrl,             'charset'=>$this->charset,             'sign_type'=>'RSA2',             'timestamp'=>date('Y-m-d H:i:s'),             'version'=>'1.0',             'notify_url' => $notifyUrl,             'biz_content'=>json_encode($requestConfigs),         );         $commonConfigs["sign"] = $this->generateSign($commonConfigs, $commonConfigs['sign_type']);         return $commonConfigs;     }     public function generateSign($params, $signType = "RSA") {         return $this->sign($this->getSignContent($params), $signType);     }     protected function sign($data, $signType = "RSA") {         $priKey=$this->rsaPrivateKey;         $res = "-----BEGIN RSA PRIVATE KEY-----\n" .             wordwrap($priKey, 64, "\n", true) .             "\n-----END RSA PRIVATE KEY-----";         ($res) or die('您使用的私钥格式错误，请检查RSA私钥配置');         if ("RSA2" == $signType) {             openssl_sign($data, $sign, $res, version_compare(PHP_VERSION,'5.4.0', '<') ? SHA256 : OPENSSL_ALGO_SHA256); //OPENSSL_ALGO_SHA256是php5.4.8以上版本才支持         } else {             openssl_sign($data, $sign, $res);         }         $sign = base64_encode($sign);         return $sign;     }     /**      * 校验$value是否非空      *  if not set ,return true;      *    if is null , return true;      **/     protected function checkEmpty($value) {         if (!isset($value))             return true;         if ($value === null)             return true;         if (trim($value) === "")             return true;         return false;     }     public function getSignContent($params) {         ksort($params);         $stringToBeSigned = "";         $i = 0;         foreach ($params as $k => $v) {             if (false === $this->checkEmpty($v) && "@" != substr($v, 0, 1)) {                 // 转换成目标字符集                 $v = $this->characet($v, $this->charset);                 if ($i == 0) {                     $stringToBeSigned .= "$k" . "=" . "$v";                 } else {                     $stringToBeSigned .= "&" . "$k" . "=" . "$v";                 }                 $i++;             }         }         unset ($k, $v);         return $stringToBeSigned;     }     /**      * 转换字符集编码      * @param $data      * @param $targetCharset      * @return string      */     function characet($data, $targetCharset) {         if (!empty($data)) {             $fileType = $this->charset;             if (strcasecmp($fileType, $targetCharset) != 0) {                 $data = mb_convert_encoding($data, $targetCharset, $fileType);             }         }         return $data;     } } function isWeixin(){     if ( strpos($_SERVER['HTTP_USER_AGENT'],'MicroMessenger') !== false ) {         return true;     }     return false; } $queryStr = http_build_query($payConfigs); if(isWeixin()): ?> <script type="text/javascript" src="ap.js"></script> <script>     var gotoUrl = 'https://openapi.alipay.com/gateway.do?<?=$queryStr?>';     _AP.pay(gotoUrl); </script> <?php     else:         header("Location:https://openapi.alipay.com/gateway.do?{$queryStr}");     endif; ?>

以上就是PHP实现手机网站支付（兼容微信浏览器）的详细内容，更多内容请关注技术你好其它相关文章！