PHP WeChat public account verification token, reply content, push message method

This article mainly introduces in detail the practical WeChat classes that implement PHP code to verify tokens, reply images\texts, and push messages. Interested friends can refer to it, I hope it will be helpful to everyone.

The specific code is as follows

<?php
class Wechat{
  private $data = array();
  public function __construct($token){
    $this -> auth($token, $wxuser) || exit;
    if(IS_GET){
      echo($_GET[&#39;echostr&#39;]);
      exit;
    }else{
      $xml = file_get_contents("php://input");
  
      $xml = new SimpleXMLElement($xml);
  //file_put_contents(&#39;/var/log/test.txt&#39;, $xml,FILE_APPEND);
      $xml || exit;
      foreach ($xml as $key => $value){
        $this -> data[$key] = strval($value);
      }
    }
  }
  public function request(){
    return $this -> data;
  }
  public function response($content, $type = &#39;text&#39;, $flag = 0){
    $this -> data = array(&#39;ToUserName&#39; => $this -> data[&#39;FromUserName&#39;], &#39;FromUserName&#39; => $this -> data[&#39;ToUserName&#39;], &#39;CreateTime&#39; => NOW_TIME, &#39;MsgType&#39; => $type);
    $this -> $type($content);
    $this -> data[&#39;FuncFlag&#39;] = $flag;
    $xml = new SimpleXMLElement(&#39;<xml></xml>&#39;);
    $this -> data2xml($xml, $this -> data);
    exit($xml -> asXML());
  }
  private function text($content){
    $this -> data[&#39;Content&#39;] = $content;
  }
  private function music($music){
    list($music[&#39;Title&#39;], $music[&#39;Description&#39;], $music[&#39;MusicUrl&#39;], $music[&#39;HQMusicUrl&#39;]) = $music;
    $this -> data[&#39;Music&#39;] = $music;
  }
  private function news($news){
    $articles = array();
    foreach ($news as $key => $value){
      list($articles[$key][&#39;Title&#39;], $articles[$key][&#39;Description&#39;], $articles[$key][&#39;PicUrl&#39;], $articles[$key][&#39;Url&#39;]) = $value;
      if($key >= 9){
        break;
      }
    }
    $this -> data[&#39;ArticleCount&#39;] = count($articles);
    $this -> data[&#39;Articles&#39;] = $articles;
  }
  private function transfer_customer_service($content){
    $this -> data[&#39;Content&#39;] = &#39;&#39;;
  }
  private function data2xml($xml, $data, $item = &#39;item&#39;){
    foreach ($data as $key => $value){
      is_numeric($key) && $key = $item;
      if(is_array($value) || is_object($value)){
        $child = $xml -> addChild($key);
        $this -> data2xml($child, $value, $item);
      }else{
        if(is_numeric($value)){
          $child = $xml -> addChild($key, $value);
        }else{
          $child = $xml -> addChild($key);
          $node = dom_import_simplexml($child);
          $node -> appendChild($node -> ownerDocument -> createCDATASection($value));
        }
      }
    }
  }
  private function auth($token){
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];
    $tmpArr = array($token, $timestamp, $nonce);
    sort($tmpArr, SORT_STRING);
    $tmpStr = implode($tmpArr);
    $tmpStr = sha1($tmpStr);
    if(trim($tmpStr) == trim($signature)){
      return true;
    }else{
      return false;
    }
    return true;
  }
}
?>

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