Tp生成小程序二维码

• 基础环境
  • 系统环境：Windows10 x64
  • PHP集成环境：phpstudy
  • PHP依赖管理工具：Composer
  • 手册：Thinkphp

（一）编写 trait 类

（1）注意事项，小程序必须要有一个发布版本才可以！！！
（2）代码亲测有效
（3）代码是在tp6环境下，生成的路径可根据当前Tp版本自行修改

<?php namespace app\common\traits; trait QrcodeMin { //获取配置 protected static function _C($type){ $arr=[ 'APPID'=>'wxba595', //你的APPID 'APP_SECRET'=>'7bfd443' //你的app_secret ]; return $arr[$type]; } /** * @param null $param * @param bool $domain * @return string * @author: Hhy <jackhhy520@qq.com> * @describe:生成小程序太阳码 */ public static function min_qrcode($param=null,$domain=false) { if (empty($param)){ $param = "site_id=4"; }else{ if (is_array($param)){ $param = http_build_query($param); } } $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" . self::getAccessToken(); //生成二维码图片 $da['page'] = 'pages/index/index'; //小程序路径地址,不写默认跳首页 $da['width'] = 430; //二维码大小 $da['scene'] = $param; //页面传参 $post_data = json_encode($da); //这里会直接生成base64图片.直接写成文件就可以 打印会显示乱码 $result = self::api_notice_increment($url, $post_data); $n = date("Ym"); $dir = app()->getRootPath() . '/public/' . 'qrcode/min/'.$n; //判断目录是否存在 if (!is_dir($dir)) { mkdir($dir, 0777, true); } //生成唯一文件名 $file =uniqid().'.png'; $filename=app()->getRootPath() . '/public/qrcode/min/'.$n."/".$file; //写入文件 file_put_contents($filename,$result); $f='/qrcode/min/'.$n."/".$file; if ($domain){ return request()->domain().$f; }else{ return $f; } } /** * @param $file * @author: Hhy <jackhhy520@qq.com> * @describe:删除二维码文件 */ public static function delQrcode($file) { //这里传入的$file 是我这边存入数据库的图片.调用unlink函数删除服务器上的图片文件 $path = app()->getRootPath() .'public'.$file; if (file_exists($path)) { @unlink ($path); }; } //添加日志 public static function add_log($data,$path=""){ if (empty($path)) $path="min_qrcode"; $file = date("Y_m_d", time()); $jia=date("Ym"); $file_path = app()->getRootPath()."Logs/".$path."/".$jia; if (!is_dir($file_path)) { mkdir($file_path, 0777, true); } @file_put_contents( $file_path.'/'.$file.'.log', date('Y-m-d H:i:s', time()).' '.json_encode($data)."\r\n", FILE_APPEND ); } /** * @return mixed * 获取accessToken */ public static function getAccessToken() { $tokenUrl="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".self::_C("APPID")."&secret=".self::_C("APP_SECRET"); $getArr=array(); $tokenArr=json_decode(self::send_post($tokenUrl,$getArr,"GET")); $access_token=self::checkWXToken($tokenArr->access_token); return $access_token; } /** * @param $access_token * @return mixed * @author: Hhy <jackhhy520@qq.com> * @describe: 验证access_token是否有效 */ protected static function checkWXToken($access_token){ //请求微信不限制调用次数的接口 $ipurl = "https://api.weixin.qq.com/cgi-bin/getcallbackip?access_token=".$access_token; $ipresult = self::getSSLPage($ipurl); $ipdata = json_decode($ipresult,true); if($ipdata['errcode'] == '40001'){ self::add_log(date('Y-m-d H:i:s').' access_token提前失效，进入二次获取token'.PHP_EOL,"access_token"); $access_token = self::getAccessToken(); } return $access_token; } /** * @param $url * @param $data * @return bool|string */ protected static function api_notice_increment($url, $data){ $ch = curl_init(); $header = "Accept-Charset: utf-8"; curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //curl_setopt($ch, CURLOPT_HTTPHEADER, $header); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)'); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_AUTOREFERER, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $tmpInfo = curl_exec($ch); if (curl_errno($ch)) { return false; }else{ return $tmpInfo;die; } } /** * @param $url * @param $post_data * @param string $method * @return false|string * 发送post请求 */ protected static function send_post($url, $post_data,$method='POST') { $postdata = http_build_query($post_data); $options = array( 'http' => array( 'method' => $method, //or GET 'header' => 'Content-type:application/x-www-form-urlencoded', 'content' => $postdata, 'timeout' => 15 * 60 // 超时时间（单位:s） ) ); $context = stream_context_create($options); $result = file_get_contents($url, false, $context); return $result; } /** * @param $url * @return bool|string * */ protected static function getSSLPage($url) { $ch = curl_init(); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSLVERSION, 30); $result = curl_exec($ch); curl_close($ch); return $result; } }

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