PHP微信开发之二维码生成类

<?php/***CreatedbyPhpStorm.*User:bin*Date:15-1-16*Time:上午9:48*/namespaceHome\Common;//微信处理类set_time

<?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");
 }

}

PHP 微信开发 二维码生成类