实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
<?php
/**
* @desc: 微信小程序支付demo
*
* 支付参考文档：https://pay.weixin.qq.com/wiki/doc/api/wxa/wxa_api.php?chapter=7_3&index=1
* 小程序开发参考文档：https://mp.weixin.qq.com/debug/wxadoc/dev/index.html?t=2017621
* 1、wx.request(OBJECT)参考文档: https://mp.weixin.qq.com/debug/wxadoc/dev/api/network-request.html
* 2、wx.requestPayment(OBJECT)参考文档: https://mp.weixin.qq.com/debug/wxadoc/dev/api/api-pay.html#wxrequestpaymentobject
* 3、获取openid参考文档：https://mp.weixin.qq.com/debug/wxadoc/dev/api/api-login.html#wxloginobject
*
* @author: jason
* @since: 2017-08-08 18:59
*/
$ret = array('resultCode' => 1);
$type = isset($_POST['type']) ? trim($_POST['type']) : '';
switch($type){
case 'openid':
//小程序的appid和appsecret
$appid = '****************';
$appsecret = '*****************';
$code = isset($_POST['code']) ? trim($_POST['code']) : '';
if(empty($code)){
$ret['errMsg'] = '登录凭证code获取失败';
exit(json_encode($ret));
}
$url = "https://api.weixin.qq.com/sns/jscode2session?appid=$appid&secret=$appsecret&js_code=$code&grant_type=authorization_code";
$json = json_decode(file_get_contents($url));
if(isset($json->errcode) && $json->errcode){
$ret['errMsg'] = $json->errcode.', '.$json->errmsg;
exit(json_encode($ret));
}
$openid = $json->openid;
$ret['resultCode'] = 0;
$ret['openid'] = $openid;
exit(json_encode($ret));
break;
case 'send':
//小程序的appid和appsecret
$appid = 'wx22f0f5085f846137';
$appsecret = '3e5f684e2948de6f74b487386692940a';
$access_token = '';
$openid = isset($_POST['openid']) ? trim($_POST['openid']) : ''; //小程序的openid
if(empty($openid)){
$ret['errMsg'] = '却少参数openid';
exit(json_encode($ret));
}
//表单提交场景下，为 submit 事件带上的 formId；支付场景下，为本次支付的 prepay_id
$formid = isset($_POST['form_id']) ? trim($_POST['form_id']) : '';
if(empty($formid)){
$ret['errMsg'] = '却少参数form_id';
exit(json_encode($ret));
}
//消息模板id
$temp_id = 'eogEBS2i4VeS2rZfwda7kdkePLTcbmPm-wW1s7A0ky4';
//获取access_token, 做缓存，expires_in：7200
generate_token($access_token, $appid, $appsecret);
$data['touser'] = $openid;
$data['template_id'] = $temp_id;
$data['page'] = 'pages/index/index'; //该字段不填则模板无跳转
$data['form_id'] = $formid;
$data['data'] = array(
'keyword1' => array('value' => '小程序模板消息测试'),
'keyword2' => array('value' => '100元'),
'keyword3' => array('value' => '支付成功'),
'keyword4' => array('value' => time() * 1000),
'keyword5' => array('value' => '微信支付'),
'keyword6' => array('value' => date('Y-m-d H:i:s')),
);
$data['emphasis_keyword'] = 'keyword5.DATA'; //模板需要放大的关键词，不填则默认无放大
$send_url = 'https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=' . $access_token;
$str = request($send_url, 'post', $data);
$json = json_decode(request($send_url, 'post', $data));
if(!$json){
$ret['errMsg'] = $str;
exit(json_encode($ret));
}else if(isset($json->errcode) && $json->errcode){
$ret['errMsg'] = $json->errcode.', '.$json->errmsg;
exit(json_encode($ret));
}
$ret['resultCode'] = 0;
exit(json_encode($ret));
break;
case 'pay':
include_once('lib/WxPayPubHelper/WxPayPubHelper.php');
$openid = isset($_POST['openid']) ? trim($_POST['openid']) : '';
if(empty($openid)){
$ret['errMsg'] = '缺少参数openid';
exit(json_encode($ret));
}
$order = new UnifiedOrder_pub();
$order->setParameter("openid", $openid);//商品描述
$order->setParameter('out_trade_no', 'phpdemo' . $timestamp);
$order->setParameter('total_fee', 1);
$order->setParameter('trade_type', 'JSAPI');
$order->setParameter('body', 'PHP微信小程序支付测试');
$order->setParameter('notify_url', 'https://www.example.cn/a.php');
$prepay_id = $order->getPrepayId();
$jsApi = new JsApi_pub();
$jsApi->setPrepayId($prepay_id);
$jsApiParams = json_decode($jsApi->getParameters());
$ret['resultCode'] = 0;
$ret['params'] = array(
'appid' => $jsApiParams->appId,
'timestamp' => $jsApiParams->timeStamp,
'nonce_str' => $jsApiParams->nonceStr,
'sign_type' => $jsApiParams->signType,
'package' => $jsApiParams->package,
'pay_sign' => $jsApiParams->paySign,
);
exit(json_encode($ret));
break;
default :
$ret['errMsg'] = 'No this type : ' . $type;
exit(json_encode($ret));
break;
}
function generate_token(&$access_token, $appid, $appsecret){
$token_file = '/tmp/token';
$general_token = true;
if(file_exists($token_file) && ($info = json_decode(file_get_contents($token_file)))){
if(time() < $info->create_time $info->expires_in - 200){
$general_token = false;
$access_token = $info->access_token;
}
}
if($general_token){
new_access_token($access_token, $token_file, $appid, $appsecret);
}
}
function new_access_token(&$access_token, $token_file, $appid, $appsecret){
$token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$appid&secret=$appsecret";
$str = file_get_contents($token_url);
$json = json_decode($str);
if(isset($json->access_token)){
$access_token = $json->access_token;
file_put_contents($token_file, json_encode(array('access_token' => $access_token, 'expires_in' => $json->expires_in, 'create_time' => time())));
}else{
file_put_contents('/tmp/error', date('Y-m-d H:i:s').'-Get Access Token Error: '.print_r($json, 1).PHP_EOL, FILE_APPEND);
}
}
function request($url, $method, array $data, $timeout = 30) {
try {
$ch = curl_init();
/*支持SSL 不验证CA根验证*/
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
/*重定向跟随*/
if (ini_get('open_basedir') == '' && !ini_get('safe_mode')) {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
}
curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
//设置 CURLINFO_HEADER_OUT 选项之后 curl_getinfo 函数返回的数组将包含 cURL
//请求的 header 信息。而要看到回应的 header 信息可以在 curl_setopt 中设置
//CURLOPT_HEADER 选项为 true
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLINFO_HEADER_OUT, false);
//fail the request if the HTTP code returned is equal to or larger than 400
//curl_setopt($ch, CURLOPT_FAILONERROR, true);
$header = array("Content-Type:application/json;charset=utf-8;", "Connection: keep-alive;");
switch (strtolower($method)) {
case "post":
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_URL, $url);
break;
case "put":
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
curl_setopt($ch, CURLOPT_URL, $url);
break;
case "delete":
curl_setopt($ch, CURLOPT_URL, $url.'?'.http_build_query($data));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'DELETE');
break;
case "get":
curl_setopt($ch, CURLOPT_URL, $url.'?'.http_build_query($data));
break;
case "new_get":
curl_setopt($ch, CURLOPT_URL, $url."?para=".urlencode(json_encode($data)));
break;
default:
throw new Exception('不支持的HTTP方式');
break;
}
$result = curl_exec($ch);
if (curl_errno($ch) > 0) {
throw new Exception(curl_error($ch));
}
curl_close($ch);
return $result;
} catch (Exception $e) {
return "CURL EXCEPTION: ".$e->getMessage();
}
}
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