php一个文件搞定微信jssdk配置

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php一个文件搞定微信jssdk配置：

包括缓存，包括https通讯，获取微信access_token，签名什么的都有。但是防范性编程做得比较少，商业用的话，需要完善下代码。

使用姿势

^ajax(Common.ServerUrl + "GetWX.php", {
 data: {
  Type: "config",
  url: location.href.split('#')[0]
 },
 dataType: 'json',
 type: 'get',
 timeout: 5000,
 success: function(data) {
  wx.config({
   debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
   appId: '……', // 必填，公众号的唯一标识
   timestamp: data.timestamp, // 必填，生成签名的时间戳
   nonceStr: data.nonceStr, // 必填，生成签名的随机串
   signature: data.signature, // 必填，签名，见附录1
   jsApiList: ["getLocation"] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
  });
 }
})
wx.ready(function() {
 wx.getLocation({
  type: 'wgs84', // 默认为wgs84的gps坐标，如果要返回直接给openLocation用的火星坐标，可传入'gcj02'
  success: function(res) {
   var latitude = res.latitude; // 纬度，浮点数，范围为90 ~ -90
   var longitude = res.longitude; // 经度，浮点数，范围为180 ~ -180。
   plus2.storage.setItem("latitude", latitude);
   plus2.storage.setItem("longitude", longitude);
  }
 });
});

服务端

GetWX.php

<?php
 include "lib/Cache.php";
 define($APPID, "……");
 define($SECRET, "……")
 if($_GET['Type'] == "access_token"){
//  echo getAccess_token();
 }
 else if($_GET['Type'] == "jsapi_ticket"){
//  echo getJsapi_ticket();
 }
 else if($_GET['Type'] == "config"){
  $jsapi_ticket = getJsapi_ticket();
  $nonceStr = "x".rand(10000,100000)."x"; //随机字符串
  $timestamp = time(); //时间戳
  $url = $_GET['url'];
  $signature = getSignature($jsapi_ticket,$nonceStr, $timestamp, $url);

  $result = array("jsapi_ticket"=>$jsapi_ticket, "nonceStr"=>$nonceStr,"timestamp"=>$timestamp,"url"=>$url,"signature"=>$signature);
  echo json_encode($result);
 }

 function getSignature($jsapi_ticket,$noncestr, $timestamp, $url){
  $string1 = "jsapi_ticket=".$jsapi_ticket."&noncestr=".$noncestr."&timestamp=".$timestamp."&url=".$url;
  $sha1 = sha1($string1);
  return $sha1;
 }

 function getJsapi_ticket(){
  $cache = new Cache();
  $cache = new Cache(7000, 'cache/'); //需要创建cache文件夹存储缓存文件。
  //从缓存从读取键值 $key 的数据
  $jsapi_ticket = $cache -> get("jsapi_ticket");
  $access_token = getAccess_token();
  //如果没有缓存数据
  if ($jsapi_ticket == false) {
   $access_token = getAccess_token();
   $url = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket'; 
   $data = array('type'=>'jsapi','access_token'=>$access_token); 
   $header = array(); 
   $response = json_decode(curl_https($url, $data, $header, 5)); 
   $jsapi_ticket = $response->ticket;
   //写入键值 $key 的数据
   $cache -> put("jsapi_ticket", $jsapi_ticket);
  }
  return $jsapi_ticket;
 }

 function getAccess_token(){
  $cache = new Cache();
  $cache = new Cache(7000, 'cache/');
  //从缓存从读取键值 $key 的数据
  $access_token = $cache -> get("access_token");

  //如果没有缓存数据
  if ($access_token == false) {
   $url = 'https://api.weixin.qq.com/cgi-bin/token'; 
   $data = array('grant_type'=>'client_credential','appid'=>$APPID,'secret'=>$SECRET); 
   $header = array();

   $response = json_decode(curl_https($url, $data, $header, 5)); 
   $access_token = $response->access_token;
   //写入键值 $key 的数据
   $cache -> put("access_token", $access_token);
  }
  return $access_token;
 }

 /** curl 获取 https 请求 
 * @param String $url 请求的url 
 * @param Array $data 要發送的數據 
 * @param Array $header 请求时发送的header 
 * @param int $timeout 超时时间，默认30s 
 */ 
 function curl_https($url, $data=array(), $header=array(), $timeout=30){ 
  $ch = curl_init(); 
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查 
  curl_setopt($ch, CURLOPT_URL, $url); 
  curl_setopt($ch, CURLOPT_HTTPHEADER, $header); 
  curl_setopt($ch, CURLOPT_POST, true); 
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data)); 
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
  curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

  $response = curl_exec($ch);

  if($error=curl_error($ch)){ 
  die($error); 
  }

  curl_close($ch);

  return $response;

 } 
?>

Cache.php
不知道哪位写的源代码~

<?php
class Cache {
 private $cache_path;
 //path for the cache
 private $cache_expire;
 //seconds that the cache expires

 //cache constructor, optional expiring time and cache path
 public function Cache($exp_time = 3600, $path = "cache/") {
  $this -> cache_expire = $exp_time;
  $this -> cache_path = $path;
 }

 //returns the filename for the cache
 private function fileName($key) {
  return $this -> cache_path . md5($key);
 }

 //creates new cache files with the given data, $key== name of the cache, data the info/values to store
 public function put($key, $data) {
  $values = serialize($data);
  $filename = $this -> fileName($key);
  $file = fopen($filename, 'w');
  if ($file) {//able to create the file
   fwrite($file, $values);
   fclose($file);
  } else
   return false;
 }

 //returns cache for the given key
 public function get($key) {
  $filename = $this -> fileName($key);
  if (!file_exists($filename) || !is_readable($filename)) {//can't read the cache
   return false;
  }
  if (time() < (filemtime($filename) + $this -> cache_expire)) {//cache for the key not expired
   $file = fopen($filename, "r");
   // read data file
   if ($file) {//able to open the file
    $data = fread($file, filesize($filename));
    fclose($file);
    return unserialize($data);
    //return the values
   } else
    return false;
  } else
   return false;
  //was expired you need to create new
 }

}
?>

以上就是本文的全部内容，希望对大家的学习有所帮助。

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