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。
扫码支付，指用户打开支付宝钱包中的“扫一扫”功能，扫描商家展示在某收银场景下的二维码并进行支付的模式。该模式适用于线下实体店支付、面对面支付等场景。
运行以下PHP文件代码即可生成一张付款二维码图片，使用支付宝扫一扫即可付款。
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
$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);
$result = $aliPay->doPay($payAmount,$outTradeNo,$orderName,$notifyUrl);
$result = $result['alipay_trade_precreate_response'];
if($result['code'] && $result['code']=='10000'){
//生成二维码
$url = 'http://pan.baidu.com/share/qrcode?w=300&h=300&url='.$result['qr_code'];
echo "
"; echo '二维码内容：'.$result['qr_code']; }else{ echo $result['msg'].' : '.$result['sub_msg']; } class AlipayService { protected $appId; protected $returnUrl; protected $notifyUrl; //私钥文件路径 protected $rsaPrivateKeyFilePath; //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,'total_amount'=>$totalFee,//单位 元 'subject'=>$orderName,//订单标题 ); $commonConfigs = array( //公共参数 'app_id' => $this->appId,'method' => 'alipay.trade.precreate',//接口名称 'format' => 'JSON','charset'=>$this->charset,'sign_type'=>'RSA2','timestamp'=>date('Y-m-d H:i:s'),'version'=>'1.0','notify_url' => $notifyUrl,'biz_content'=>json_encode($requestConfigs),); $commonConfigs["sign"] = $this->generateSign($commonConfigs,$commonConfigs['sign_type']); $result = $this->curlPost('https://openapi.alipay.com/gateway.do',$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($data,$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 $data; } public function curlPost($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($ch,CURLOPT_POST,CURLOPT_POSTFIELDS,$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 $data; } }
"; echo '二维码内容：'.$result['qr_code']; }else{ echo $result['msg'].' : '.$result['sub_msg']; } class AlipayService { protected $appId; protected $returnUrl; protected $notifyUrl; //私钥文件路径 protected $rsaPrivateKeyFilePath; //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,'total_amount'=>$totalFee,//单位 元 'subject'=>$orderName,//订单标题 ); $commonConfigs = array( //公共参数 'app_id' => $this->appId,'method' => 'alipay.trade.precreate',//接口名称 'format' => 'JSON','charset'=>$this->charset,'sign_type'=>'RSA2','timestamp'=>date('Y-m-d H:i:s'),'version'=>'1.0','notify_url' => $notifyUrl,'biz_content'=>json_encode($requestConfigs),); $commonConfigs["sign"] = $this->generateSign($commonConfigs,$commonConfigs['sign_type']); $result = $this->curlPost('https://openapi.alipay.com/gateway.do',$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($data,$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 $data; } public function curlPost($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($ch,CURLOPT_POST,CURLOPT_POSTFIELDS,$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; } }
