PHP微信开发之二维码生成类

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

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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