<?php

header(\'Content-type:text/html; Charset=utf-8\');

/*** 请填写以下配置信息 ***/

$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

$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，不能重复

$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

$rsaPrivateKey=\'xxxxx\'; //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

/*** 配置结束 ***/

$aliPay = new AlipayService();

$aliPay->setAppid($appid);

$aliPay->setNotifyUrl($notifyUrl);

$aliPay->setRsaPrivateKey($rsaPrivateKey);

$aliPay->setTotalFee($payAmount);

$aliPay->setOutTradeNo($outTradeNo);

$aliPay->setOrderName($orderName);

$result = $aliPay->doPay();

$result = $result[\'alipay_trade_precreate_response\'];

if($result[\'code\'] && $result[\'code\']==\'10000\'){

//下面的URL生成二维码即可

$url = $result[\'qr_code\'];

echo \'二维码内容：\'.$result[\'qr_code\'];

}else{

echo $result[\'msg\'].\' : \'.$result[\'sub_msg\'];

}

class AlipayService

{

protected $appId;

protected $notifyUrl;

protected $charset;

//私钥值

protected $rsaPrivateKey;

protected $totalFee;

protected $outTradeNo;

protected $orderName;

public function __construct()

{

$this->charset = \'utf-8\';

}

public function setAppid($appid)

{

$this->appId = $appid;

}

public function setNotifyUrl($notifyUrl)

{

$this->notifyUrl = $notifyUrl;

}

public function setRsaPrivateKey($saPrivateKey)

{

$this->rsaPrivateKey = $saPrivateKey;

}

public function setTotalFee($payAmount)

{

$this->totalFee = $payAmount;

}

public function setOutTradeNo($outTradeNo)

{

$this->outTradeNo = $outTradeNo;

}

public function setOrderName($orderName)

{

$this->orderName = $orderName;

}

/**

* 发起订单

* @return array

*/

public function doPay()

{

//请求参数

$requestConfigs = array(

\'out_trade_no\'=>$this->outTradeNo,

\'total_amount\'=>$this->totalFee, //单位 元

\'subject\'=>$this->orderName, //订单标题

\'timeout_express\'=>\'2h\' //该笔订单允许的最晚付款时间，逾期将关闭交易。取值范围：1m～15d。m-分钟，h-小时，d-天，1c-当天（1c-当天的情况下，无论交易何时创建，都在0点关闭）。 该参数数值不接受小数点， 如 1.5h，可转换为 90m。

);

$commonConfigs = array(

//公共参数

\'app_id\' => $this->appId,

\'method\' => \'alipay.trade.precreate\', //接口名称

\'format\' => \'JSON\',

\'charset\'=>$this->charset,

\'sign_type\'=>\'RSA2\',

\'timestamp\'=>date(\'Y-m-d H:i:s\'),

\'version\'=>\'1.0\',

\'notify_url\' => $this->notifyUrl,

\'biz_content\'=>json_encode($requestConfigs),

);

$commonConfigs[\"sign\"] = $this->generateSign($commonConfigs, $commonConfigs[\'sign_type\']);

$result = $this->curlPost(\'https://openapi.alipay.com/gateway.do?charset=\'.$this->charset,$commonConfigs);

return json_decode($result,true);

}

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;

}

public function curlPost($url = \'\', $postData = \'\', $options = array())

{

if (is_array($postData)) {

$postData = http_build_query($postData);

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求 不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}