Wechat--小开发

2019-11-06 07:24:31

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最近在做微信开发 , 把一些小功能分享给大家：

微信生成 [二维码] [缩略图] [图片水印]

<?phpdefine("APPID", "您的APPID");define("APPSECRET", "您的APPSECRET");define("OPENID","您的OPENID");define("METHOD","POST"); //定义传输方式define("FPID","123"); //场景值IDclass Wechat{ //构造方法 //获取Ticket链接 static $qrcode_url = "https://api.weixin.QQ.com/cgi-bin/qrcode/create?"; //获取Token链接 static $token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&"; //获取二维码 static $qrcode_get_url = "https://mp.weixin.qq.com/cgi-bin/showqrcode?"; //获取关注列表 static $wechatlist_url = "https://api.weixin.qq.com/cgi-bin/user/get?access_token="; //生成二维码 function getQRcode(){ $token=$this->getToken(); //获取token值 $codeUrl=$this->getQrcodeurl($token,123);//获取二维码 return $this->DownLoadQr($codeUrl);//下载二维码到本地 } //获取token function getToken(){ $ACCESS_TOKEN = file_get_contents(self::$token_url."appid=".APPID."&secret=".APPSECRET); $ACCESS_TOKEN = json_decode($ACCESS_TOKEN); $ACCESS_TOKEN = $ACCESS_TOKEN->access_token; return $ACCESS_TOKEN; } //获取二维码链接 function getQrcodeurl($ACCESS_TOKEN,$fpid){ //生成永久二维码 $qrcode= '{"action_name": "QR_LIMIT_SCENE", "action_info": {"scene": {"scene_str": '.$fpid.'}}}'; $result =$this->curlPosts($url,$qrcode,METHOD); $arr=json_decode($result,true); $ticket=$arr['ticket']; $ticket1=urlencode($ticket); if(!$ticket1){ $this->ErrorLogger('getQrcodeurl falied. Error Info: getQrcodeurl get failed'); exit(); } $url = self::$qrcode_get_url.'ticket='.$ticket1.''; return $url; } //cur上传 PRotected function curlPosts($url,$data,$method){ $ch = curl_init(); //1.初始化 curl_setopt($ch, CURLOPT_URL, $url); //2.请求地址 curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);//3.请求方式 //4.参数如下 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);//https curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');//模拟浏览器 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_AUTOREFERER, 1); curl_setopt($ch, CURLOPT_HTTPHEADER,array('Accept-Encoding: gzip, deflate'));//gzip解压内容 curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate'); if($method=="POST"){//5.post方式的时候添加数据 curl_setopt($ch, CURLOPT_POSTFIELDS, $data); } curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $tmpInfo = curl_exec($ch);//6.执行 if (curl_errno($ch)) {//7.如果出错 return curl_error($ch); } curl_close($ch);//8.关闭 return $tmpInfo; } //下载二维码图片,生成活动图 protected function DownLoadQr($url){ if($url == ""){ return false; } $filename =OPENID .'.jpg'; $picPath='./codePic/'.date('Y-m-d',time()).'/pic/'; //生成图片目录 $file=$picPath."$filename"; //二维码原图片地址 $get=file_get_contents($url); if(!file_exists($picPath)){ //判断原图片地址 @mkdir('./codePic/'); @mkdir('./codePic/'.date('Y-m-d',time())); @mkdir($picPath,0777); } $put=file_put_contents($file,$get); if($put === false){ $this->ErrorLogger('dolwload image falied. Error Info: 无法写入图片'); exit(); } $imgPath='./codePic/'.date('Y-m-d',time()).'/img/'; if(!file_exists($imgPath)){ //判断缩略图片地址 @mkdir('./codePic/'); @mkdir('./codePic/'.date('Y-m-d',time())); @mkdir($imgPath,0777); } $file1=$imgPath."$filename"; //二维码缩略图片地址 //修改二维码缩略图的大小 $img=$this->img_create_small($file,170,170,$file1); $dst="底层图片的地址.jpg"; //图片水印 $hdImg=$this->makeImg($dst,$file1,0,10); } //图片水印 protected function makeImg($dst_path,$src_path,$dst_w,$dst_h){//创建图片的实例 $dst = imagecreatefromstring(file_get_contents($dst_path)); $src = imagecreatefromstring(file_get_contents($src_path));//获取水印图片的宽高 list($src_w, $src_h) = getimagesize($src_path);//修改二维码在原图上的位置 imagecopymerge($dst, $src, 450, 1110, 0, 0, $src_w, $src_h, 100); //如果水印图片本身带透明色，则使用imagecopy方法//imagecopy($dst, $src, 10, 10, 0, 0, $src_w, $src_h);//输出图片 list($dst_w, $dst_h, $dst_type) = getimagesize($dst_path); switch ($dst_type) { case 1://GIF header('Content-Type: image/gif'); imagegif($dst); break; case 2://JPG header('Content-Type: image/jpeg'); imagejpeg($dst); break; case 3://PNG header('Content-Type: image/png'); imagepng($dst); break; default: break; } imagedestroy($dst); imagedestroy($src); } //二维码缩略图 function img_create_small($big_img, $width, $height, $small_img) {//原始大图地址，缩略图宽度，高度，缩略图地址 $imgage = getimagesize($big_img); //得到原始大图片 switch ($imgage[2]) { // 图像类型判断 case 1: $im = imagecreatefromgif($big_img); break; case 2: $im = imagecreatefromjpeg($big_img); break; case 3: $im = imagecreatefrompng($big_img); break; } $src_W = $imgage[0]; //获取大图片宽度 $src_H = $imgage[1]; //获取大图片高度 $tn = imagecreatetruecolor($width, $height); //创建缩略图 imagecopyresampled($tn, $im, 0, 0, 0, 0, $width, $height, $src_W, $src_H); //复制图像并改变大小 return imagejpeg($tn, $small_img); //输出图像 } //获取code function getCode(){ $re_uri="http://你的回调地址/index.php"; $re_uri=urlencode($re_uri); $url="https://open.weixin.qq.com/connect/oauth2/authorize?appid=".APPID."&redirect_uri=". $re_uri."&response_type=code&scope=snsapi_userinfo&state=123#wechat_redirect"; //echo $url; $code=$_GET['code']; echo $code;; } //获取openid function getOpenid($token){ $url="https://api.weixin.qq.com.cgi-bin/user/get?access_token=".$token ; $res=$this->https_request($url); $jsoninfo=json_decode($res,true); $user=($jsoninfo['data']['openid']); print_r($user); } //获取关注列表 function getWechatlist(){ $access_token=$this->getToken(); //获取关注量 $url = self::$wechatlist_url.$access_token; $result =$this->https_request($url); $jsoninfo = json_decode($result, true); return $jsoninfo['total']; } //https请求（支持GET和POST） function https_request($url, $data = null) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); if (!empty($data)) { curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $output = curl_exec($curl); curl_close($curl); return $output; }//报错日志 private function ErrorLogger($errMsg){ $logger = fopen('./ErrorLog.txt', 'a+'); fwrite($logger, date('Y-m-d H:i:s')." Error Info : ".$errMsg."rn"); }}希望这些能帮助到你!!!

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