This article mainly introduces the relevant information about the class library that calls the WeChat signature package packaged in WeChat. Friends who need it can refer to it

No more nonsense, I will directly post the code for everyone, the specific code As shown below:

<?php
namespace Home\Model;
use Think\Model;
class WechatModel extends Model {
private $_token = &#39;&#39;; //令牌
    private $appid;
    private $appsecret;
  public function __construct()
  {
    $this->appid = C(&#39;APPID&#39;);//公眾號的appid
    $this->appsecret = C(&#39;APPSECRET&#39;);//公眾號的秘鑰
  }
  //調(diào)用js-sdk的簽名包
  public function getSignPackage() {
  $jsapiTicket = $this->getJsApiTicket();
  // 注意 URL 一定要動態(tài)獲取，不能 hardcode.（獲取當前網(wǎng)頁的url）
  $protocol = (!empty($_SERVER[&#39;HTTPS&#39;]) && $_SERVER[&#39;HTTPS&#39;] !== &#39;off&#39; || $_SERVER[&#39;SERVER_PORT&#39;] == 443) ? "https://" : "http://";
  $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
  //時間戳
  $timestamp = time();
  //隨機字符串獲取
  $nonceStr = $this->createNonceStr();
  // 這里參數(shù)的順序要按照 key 值 ASCII 碼升序排序
  $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";
  //生成字符串是用來簽名用的
  $signature = sha1($string);
  $signPackage = array(
   "appId"   => $this->appid,
   "nonceStr" => $nonceStr,
   "timestamp" => $timestamp,
   "url"    => $url,
   "signature" => $signature,
   "rawString" => $string
  );
  return $signPackage; 
 }
 //使用會員卡領取的簽名包
 public function getHuiYuanSignPackage() {
  $apiTicket = $this->getApiTicket();
  // 注意 URL 一定要動態(tài)獲取，不能 hardcode.（獲取當前網(wǎng)頁的url）
  $protocol = (!empty($_SERVER[&#39;HTTPS&#39;]) && $_SERVER[&#39;HTTPS&#39;] !== &#39;off&#39; || $_SERVER[&#39;SERVER_PORT&#39;] == 443) ? "https://" : "http://";
  $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
  //時間戳
  $timestamp = time();
  //隨機字符串獲取
  // $nonceStr = $this->createNonceStr();
  // 這里參數(shù)的順序要按照 key 值 ASCII 碼升序排序
  $string = $timestamp.$apiTicket."car_id";//card_id為自己創(chuàng)建的會員卡的id
  //生成字符串是用來簽名用的
  $signature = sha1($string);
  $signPackage = array(
   "timestamp" => $timestamp,
   "signature" => $signature,
  );
  return $signPackage; 
 }
 //獲取會員卡的api_ticket
 public function getApiTicket(){
 $data = json_decode(file_get_contents("api_ticket.json"));
  if ($data->expire_time < time()) {
   $accessToken = $this->getAccessToken();
   $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=wx_card&access_token=$accessToken";
   $res = json_decode($this->httpGet($url));
   $ticket = $res->ticket;
   if ($ticket) {
    $data->expire_time = time() + 7000;
    $data->jsapi_ticket = $ticket;
    $fp = fopen("api_ticket.json", "w");
    fwrite($fp, json_encode($data));
    fclose($fp);
   }
  } else {
   $ticket = $data->jsapi_ticket;
  }
  return $ticket;
 }
 //獲取隨機字符串
 private function createNonceStr($length = 16) {
  $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  $str = "";
  for ($i = 0; $i < $length; $i++) {
   $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
  }
  return $str;
 }
  //獲取Access Token
  public function getAccessToken(){
  //將json字符串轉(zhuǎn)換為json對象（json_encode是將數(shù)組轉(zhuǎn)換為json字符串，json_decode("",true) 如果加true是將json字符串轉(zhuǎn)化為php數(shù)組，不加true轉(zhuǎn)換為PHP對象）
  $data = json_decode(file_get_contents("access_token.json"));
  if ($data->expire_time < time()) {
   // 如果是企業(yè)號用以下URL獲取access_token
   $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appid&secret=$this->appsecret";
   $res = json_decode($this->httpGet($url));
   $access_token = $res->access_token;
 if ($access_token) {
    $data->expire_time = time() + 7000;
    $data->access_token = $access_token;
    $fp = fopen("access_token.json", "w");
    fwrite($fp, json_encode($data));
    fclose($fp);
 }
  } else {
   $access_token = $data->access_token;
  }
  return $access_token;
  }
 //獲取jsapi_ticket(jsapi_ticket是公眾號用于調(diào)用微信JS接口的臨時票據(jù))
  private function getJsApiTicket() {
  // jsapi_ticket 應該全局存儲與更新，以下代碼以寫入到文件中做示例
  $data = json_decode(file_get_contents("jsapi_ticket.json"));
  if ($data->expire_time < time()) {
   $accessToken = $this->getAccessToken();
   // 如果是企業(yè)號用以下 URL 獲取 ticket
   // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
   $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
   $res = json_decode($this->httpGet($url));
   $ticket = $res->ticket;
   if ($ticket) {
    $data->expire_time = time() + 7000;
    $data->jsapi_ticket = $ticket;
    $fp = fopen("jsapi_ticket.json", "w");
    fwrite($fp, json_encode($data));
    fclose($fp);
   }
  } else {
   $ticket = $data->jsapi_ticket;
  }
  return $ticket;
 }
  //獲取用戶的openid
  public function openId(){
  $url = $_SERVER[&#39;HTTP_HOST&#39;] . $_SERVER[&#39;REQUEST_URI&#39;]; 
    if (!isset($_GET[&#39;code&#39;])) {
     //獲取組裝的url
      $openidUrl = $this->snsapi_base($url);
      redirect($openidUrl);
    }else{
      $openidAccess_token = $this->openidAccess_token($_GET[&#39;code&#39;]);
      return $openidAccess_token;
    }
  }
   //獲取微信用戶的opnid
  public function getOpenId($openid,$access_token)
  {
    $userInfo = $this->getUserInfo($openid,$access_token);
    return $userInfo;
  }
   public function snsapi_base($redirect_uri, $scope = "snsapi_userinfo", $state = 0)
  {
    $appId = $this->appid;
    $url = "https://open.weixin.qq.com/connect/oauth2/authorize";
    $url .= "?appid=$appId";
    $url .= "&redirect_uri=http://$redirect_uri";
    $url .= "&response_type=code";
    $url .= "&scope=$scope";
    $url .= "&state=$state#wechat_redirect";
    return $url;
  }
public function openidAccess_token($code){
    $appId = $this->appid;
    $appSecret= $this->appsecret;
    $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appId&secret=$appSecret&code=$code&grant_type=authorization_code";
    return json_decode($this->httpGet($url),true);
  }
  //獲取用戶信息
  public function getUserInfo($openid, $access_token){
  $url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN ";
    return json_decode($this->httpGet($url),true);
   //請求
  }
private function httpGet($url) {
  $curl = curl_init();
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($curl, CURLOPT_TIMEOUT, 500);
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
  curl_setopt($curl, CURLOPT_URL, $url);
  $res = curl_exec($curl);
  curl_close($curl);
  return $res;
 }
}

The above is the detailed content of WeChat packaged class library that calls WeChat signature package. For more information, please follow other related articles on the PHP Chinese website!