PHP微信开发之二维码生成类_PHP教程

PHP微信开发之二维码生成类

2020-10-06 20:34PHP教程网 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

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									<?php

									/**

									 * Created by PhpStorm.

									 * User: bin

									 * Date: 15-1-16

									 * Time: 上午9:48

									 */

									namespace Home\Common;

									// 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."\r\n");

									  }

									}