PHP微信开发之二维码生成类

<?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."
"）;}}