本文主要和大家分享PHP实现app唤起支付宝支付代码，希望能帮助到大家。
// 获取 支付宝app 支付字符串
public function alipay_params_data(){
$data = $this->ApiData();//获取数据
if(!$data['out_trade_no']){
systemmess('0','参数错误');
}
$out_trade_no = $data['out_trade_no'];
$_biz_data = array();
$_biz_data['body'] = $oid_body;
$_biz_data['subject'] = $subject;
$_biz_data['out_trade_no'] = $out_trade_no;
$_biz_data['timeout_express'] = "30m";
$_biz_data['total_amount'] = $price;
//$_biz_data['total_amount'] = '0.01';
$_biz_data['product_code'] = 'QUICK_MSECURITY_PAY';
$_biz_data['passback_params'] = $_type;
/*
$bizcontent = "{\"body\":\"".$order_info['data']['oid_body']."\","
. "\"subject\": \"".$order_info['data']['oid_title']."\","
. "\"out_trade_no\": \"".$order_info['data']['oid']."\","
. "\"timeout_express\": \"30m\","
. "\"total_amount\": \"".$order_info['data']['oid_price']."\","
. "\"product_code\":\"QUICK_MSECURITY_PAY\","
. "\"passback_params\":\"".$_type."\""
. "}";
*/
$bizcontent = json_encode($_biz_data);
$alipay_config = C('ALIPAY_CONFIG');
//异步通知地址
$return_url = 'http://'.$_SERVER['HTTP_HOST'].''.U('Appreturn/notify_alipay');
//配置信息
Vendor('alipay-appsdk.aop.AopClient');
Vendor('alipay-appsdk.aop.request.AlipayTradeAppPayRequest');
$aop = new \AopClient();
$aop->gatewayUrl = "https://openapi.alipay.com/gateway.do";
$aop->appId = $alipay_config['app_id'];
$aop->rsaPrivateKey = $alipay_config['merchant_private_key'];
$aop->format = "json";
$aop->charset = "UTF-8";
$aop->signType = "RSA";
$aop->alipayrsaPublicKey = $alipay_config['alipay_public_key'];
//实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.pay
$request = new \AlipayTradeAppPayRequest();
//SDK已经封装掉了公共参数，这里只需要传入业务参数
$request->setNotifyUrl($return_url);
$request->setBizContent($bizcontent);
//这里和普通的接口调用不同，使用的是sdkExecute
$response = $aop->sdkExecute($request);
//htmlspecialchars是为了输出到页面时防止被浏览器将关键参数html转义，实际打印到日志以及http传输不会有这个问题
// echo ;//就是orderString 可以直接给客户端请求，无需再做处理。
// json_echo(1,"ok",array('text'=>htmlspecialchars($response)));exit;
$json['msg'] ='1';
$json['state'] ='1';
$json['text'] =$response;
$json['return_url'] =$return_url;
// $json['alipay_config'] =$alipay_config;
// $json['aop'] =$request;
echo json_encode($json);exit;
//json_echo(1,"ok",array('text'=>$response,'return_url'=>$return_url));exit;
}
//异步通知地址
public function notify_alipay(){
$alipay_config = C('ALIPAY_CONFIG');
$_post_data = $_POST;
$_sign_type = $_post_data['sign_type'];
$_sign = $_post_data['sign'];
S('zfbpost'.time(),$_POST);
M('log')->add(array('title'=>'支付宝','content'=>json_encode($_POST)));
// unset($_get_data['sign']);
// unset($_get_data['sign_type']);
Vendor('alipay-appsdk.aop.AopClient');
$aop = new \AopClient();
$aop->alipayrsaPublicKey = $alipay_config['alipay_public_key'];
//$result = $aop->rsaCheckV1($_post_data, NULL, "RSA2");
//$result = $aop->rsaCheckV1($_post_data, NULL, "RSA");
$result = $aop->rsaCheckV1($_post_data, NULL, "RSA");
// $result = true;
if($result){
//print_r($_post_data);
$_type = $_post_data['passback_params'];
//商户订单号
$out_trade_no = $_post_data['out_trade_no'];
//支付宝交易号
$trade_no = $_post_data['trade_no'];
//交易状态
$trade_status = $_post_data['trade_status'];
//已下修改订单信息
/* if($_post_data['trade_status'] == 'TRADE_FINISHED'){
$this->edit_order_info($_type,$out_trade_no,$_post_data['trade_no'],$_post_data['gmt_payment'],$_post_data['total_amount'],'alipay',$_post_data);
//注意：
//退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
}elseif($_post_data['trade_status'] == 'TRADE_SUCCESS'){
$this->edit_order_info($_type,$out_trade_no,$_post_data['trade_no'],$_post_data['gmt_payment'],$_post_data['total_amount'],'alipay',$_post_data);
//注意：
//付款完成后，支付宝系统发送该交易状态通知
} */
//——请根据您的业务逻辑来编写程序（以上代码仅作参考）——
echo "success"; //请不要修改或删除
}else{
// 验证失败
echo "fail".json_encode($result); //请不要修改或删除
}
// F('APP_ALIPAY_POST_'.$_POST['passback_params'].'_'.time(),array($_post_data,$result));
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