php支付宝系列之电脑网站支付

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。

一个PHP文件搞定支付宝系列

一个PHP文件搞定微信支付系列

环境依赖

PHP5.0以上，且需要开启CURL服务、SSL服务。

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 生成RSA密钥
2.2 创建应用

代码

<?phpheader('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,$saPrivateKey);$sHtml = $aliPay->doPay($payAmount,$outTradeNo,$orderName,$returnUrl,$notifyUrl);echo $sHtml;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'=>'FAST_INSTANT_TRADE_PAY',      '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.page.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 $this->buildRequestForm($commonConfigs);  }  /**   * 建立请求，以表单HTML形式构造（默认）   * @param $para_temp 请求参数数组   * @return 提交表单HTML文本   */  protected function buildRequestForm($para_temp) {    $sHtml = "<form id='alipaysubmit' name='alipaysubmit' action='https://openapi.alipay.com/gateway.do?charset=".$this->charset."' method='POST'>";    while (list ($key, $val) = each ($para_temp)) {      if (false === $this->checkEmpty($val)) {        $val = str_replace("'","'",$val);        $sHtml.= "<input type='hidden' name='".$key."' value='".$val."'/>";      }    }    //submit按钮控件请不要含有name属性    $sHtml = $sHtml."<input type='submit' value='ok' style='display:none;''></form>";    $sHtml = $sHtml."<script>document.forms['alipaysubmit'].submit();</script>";    return $sHtml;  }  public function generateSign($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, $fileType);        //$data = iconv($fileType, $targetCharset.'//IGNORE', $data);      }    }    return $data;  }}