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 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");
- }
- }
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