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。
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
PHP;">
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,$notifyUrl);
echo $sHtml;
原文链接：https://www.f2er.com/php/15983.htmlclass AlipayService
{
protected $appId;
protected $returnUrl;
protected $notifyUrl;
protected $charset;
//私钥值
protected $rsaPrivateKey;
public function __construct($appid,$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,$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<a href="https://www.jb51.cc/tag/shuxing/" target="_blank" class="keywords">属性</a>
$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<a href="https://www.jb51.cc/tag/cuowu/" target="_blank" class="keywords">错误</a>，请检查RSA私钥配置');
if ("RSA2" == $signType) {
openssl_sign($data,$sign,$res,version_compare(<a href="https://www.jb51.cc/tag/PHP/" target="_blank" class="keywords">PHP</a>_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($data,$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,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;
}
}
