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本篇內容主要講解“PHP怎么實現一個二維碼生成類”,感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷,實用性強。下面就讓小編來帶大家學習“PHP怎么實現一個二維碼生成類”吧!
<?php /** * Created by PhpStorm. * User: bin * Date: 15-1-16 * Time: 上午9:48 */ namespace Home\Common; // 微信處理類 set_time_limit(30); class Weixin{ //構造方法 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 $qrcode_get_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?"; //生成二維碼 public function getEwm($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){ //生成永久二維碼 $qrcode= '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_id": '.$fqid.'}}}'; }else{ //生成臨時二維碼 $qrcode = '{"expire_seconds": 1800, "action_name": "QR_SCENE", "action_info": {"scene": {"scene_id": '.$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, $return_content); } //下載二維碼到服務器 protected function DownLoadQr($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){ $this->ErrorLogger('dolwload image falied. Error Info: 無法寫入圖片'); exit(); } fclose($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"); } }
到此,相信大家對“PHP怎么實現一個二維碼生成類”有了更深的了解,不妨來實際操作一番吧!這里是億速云網站,更多相關內容可以進入相關頻道進行查詢,關注我們,繼續學習!
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