位置:PHP教程 > PHP实例

PHP微信开发之生成二维码类

时间:2016-11-18
简介:PHP教程|这篇文章主要介绍了PHP微信开发之二维码生成类,本文使用微信接口实现二维码的生成,并直接给出示例代码,需要的朋友可以参考下
<?php/**
  * Created by PhpStorm.
  * User: bin
  * Date: 15-1-16
  * Time: 上午9:48
  */
  namespace HomeCommon;
  // 微信处理类
  set_time_limit(30);
  class Weixin{
  //构造方法
  static $qrcode_url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?";
  static $token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&";
  static $qrcode_get_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?";
  //生成二维码
  public function getEwm($wechatid,$fqid,$type = 1){
  $wechat = M('Member_public')->where(array('id'=> $wechatid))->find();
  $appid = $wechat['appid'];
  $secret = $wechat['secret'];
  $ACCESS_TOKEN = $this->getToken($appid,$secret);
  $url = $this->getQrcodeurl($ACCESS_TOKEN,$fqid,1);
  return DownLoadQr($url,time());
  }
  protected function getQrcodeurl($ACCESS_TOKEN,$fqid,$type = 1){
  $url = self::$qrcode_url.'access_token='.$ACCESS_TOKEN;
  if($type == 1){
  //生成永久二维码
  $qrcode= '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$fqid.'}}}';
  }else{
  //生成临时二维码
  $qrcode = '{"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": '.$fqid.'}}}';
  }
  $result = $this->http_post_data($url,$qrcode);
  $oo = json_decode($result[1]);
  if(!$oo->ticket){
  $this->ErrorLogger('getQrcodeurl falied. Error Info: getQrcodeurl get failed');
  exit();
  }
  $url = self::$qrcode_get_url.'ticket='.$oo->ticket.'';
  return $url;
  }
  protected function getToken($appid,$secret){
  $ACCESS_TOKEN = file_get_contents(self::$token_url."appid=$appid&secret=$secret");
  $ACCESS_TOKEN = json_decode($ACCESS_TOKEN);
  $ACCESS_TOKEN = $ACCESS_TOKEN->access_token;
  return $ACCESS_TOKEN;
  }
  protected function http_post_data($url, $data_string) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
  'Content-Type: application/json; charset=utf-8',
  'Content-Length: ' . strlen($data_string))
  );
  ob_start();
  curl_exec($ch);
  if (curl_errno($ch)) {
  $this->ErrorLogger('curl falied. Error Info: '.curl_error($ch));
  }
  $return_content = ob_get_contents();
  ob_end_clean();
  $return_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  return array($return_code, $return_content);
  }
  //下载二维码到服务器
  protected function DownLoadQr($url,$filestring){
  if($url == ""){
  return false;
  }
  $filename = $filestring.'.jpg';
  ob_start();
  readfile($url);
  $img=ob_get_contents();
  ob_end_clean();
  $size=strlen($img);
  $fp2=fopen('./Uploads/qrcode/'.$filename,"a");
  if(fwrite($fp2,$img) === false){
  $this->ErrorLogger('dolwload image falied. Error Info: 无法写入图片');
  exit();
  }
  fclose($fp2);
  return './Uploads/qrcode/'.$filename;
  }
  private function ErrorLogger($errMsg){
  $logger = fopen('./ErrorLog.txt', 'a+');
  fwrite($logger, date('Y-m-d H:i:s')." Error Info : ".$errMsg."rn");
  }
  }
  ?>

TAGS:PHP微信开发PHP生成二维码

上一编:PHP文件上传的简单实例

下一编:没有了

NewHot手机版