<?php /** * 獲取小程序二維碼 */ class getMiniQrcode { public $db = ''; public function __construct() { $this->db = mysqli_connect('', '', '', ''); } public function index($id = 0) { if (!$id) { echo 'no input ID'; return; } $res = mysqli_query($this->db, "select id,command,device_num from sys_equipment where id=" . $id); $res = mysqli_fetch_assoc($res); $ARRAY = []; $ARRAY[] = $res; // 獲取token $ACCESS_TOKEN = $this->getAccesstoken(); // 準備進入小程序的參數 $color = [ 'r' => 0, 'g' => 0, 'b' => 0, ]; foreach ($ARRAY as $key => $value) { $param = [ 'path' => "pages/shop/shop?mac=" . $value['command'], 'auto_color' => false, 'line_color' => $color, 'is_hyaline' => false, 'width' => 1280, ]; // 請求微信生成二維碼接口 $request_url = "https://api.weixin.qq.com/wxa/getwxacode?access_token=" . $ACCESS_TOKEN; $result = $this->httpRequest($request_url, json_encode($param), "POST"); $myPic = 'http://www.yoursite.com/path/to/logo.jpg'; // 生成圓形自定義圖片 $logo = $this->yuanImg($myPic); //二維碼與自定義圖片結合 $sharePic = $this->qrcodeWithLogo($result, $logo); // 準備文件名 // $filename = date('YmdHis') . md5(time() . mt_rand(10, 99)) . '.png'; $filename = $value['id'] . '_small.png'; $filepath = "./" . $filename; // 將二進制圖片寫入文件 if (@$fp = fopen($filepath, 'w+')) { fwrite($fp, $sharePic); fclose($fp); } if (file_exists($filepath)) { echo 'success'; // 這裏的background.png爲比二維碼大的一張白色圖片, 多出的空白的地方,用來寫文字 $background = imagecreatefrompng('http://www.yoursite.com/path/to/background.png'); $img = imagecreatefrompng('./' . $filename); // 合併 imagecopy($background, $img, 0, 0, 0, 0, 1280, 1280); // 字體文件包 $font = './font.ttf'; $color = imagecolorallocate($background, 0, 0, 0); // 要寫入的文本 $text = 'SN: ' . $value['device_num']; imagettftext($background, 60, 0, 170, 1350, $color, $font, $text); //生成圖像 imagepng($background); imagepng($background, './' . $value['id'] . '.png'); } } } /** * [獲取AccessToken] * @return [type] [description] */ public function getAccesstoken() { header('content-type:text/html;charset=utf-8'); //配置APPID、APPSECRET $APPID = ''; $APPSECRET = ''; // 請求地址 $getTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$APPID&secret=$APPSECRET"; $ACCESS_TOKEN = ""; $jsonResult = $this->httpRequest($getTokenUrl); $jsonResult = json_decode($jsonResult, true); $ACCESS_TOKEN = $jsonResult["access_token"]; return $ACCESS_TOKEN; } /** * 剪切圖片爲圓形 * @param $picture 圖片數據流 好比file_get_contents(imageurl)返回的東東 * @return 圖片數據流 */ public function yuanImg($picture) { $src_img = imagecreatefromstring(file_get_contents($picture)); $w = imagesx($src_img); $h = imagesy($src_img); $w = min($w, $h); $h = $w; $img = imagecreatetruecolor($w, $h); //這一句必定要有 imagesavealpha($img, true); //拾取一個徹底透明的顏色,最後一個參數127爲全透明 $bg = imagecolorallocatealpha($img, 255, 255, 255, 127); imagefill($img, 0, 0, $bg); $r = $w / 2; //圓半徑 $y_x = $r; //圓心X座標 $y_y = $r; //圓心Y座標 for ($x = 0; $x < $w; $x++) { for ($y = 0; $y < $h; $y++) { $rgbColor = imagecolorat($src_img, $x, $y); if (((($x - $r) * ($x - $r) + ($y - $r) * ($y - $r)) < ($r * $r))) { imagesetpixel($img, $x, $y, $rgbColor); } } } /** * 若是想要直接輸出圖片,應該先設header。header("Content-Type: image/png; charset=utf-8"); * 而且去掉緩存區函數 */ //獲取輸出緩存,不然imagepng會把圖片輸出到瀏覽器 ob_start(); imagepng($img); imagedestroy($img); $contents = ob_get_contents(); ob_end_clean(); return $contents; } /** * 在二維碼的中間區域鑲嵌圖片 * @param $QR 二維碼數據流。好比file_get_contents(imageurl)返回的東東,或者微信給返回的東東 * @param $logo 中間顯示圖片的數據流。好比file_get_contents(imageurl)返回的東東 * @return 返回圖片數據流 */ public function qrcodeWithLogo($QR, $logo) { $QR = imagecreatefromstring($QR); $logo = imagecreatefromstring($logo); $QR_width = imagesx($QR); //二維碼圖片寬度 $QR_height = imagesy($QR); //二維碼圖片高度 $logo_width = imagesx($logo); //logo圖片寬度 $logo_height = imagesy($logo); //logo圖片高度 $logo_qr_width = $QR_width / 2.2; //組合以後logo的寬度(佔二維碼的1/2.2) $scale = $logo_width / $logo_qr_width; //logo的寬度縮放比(自己寬度/組合後的寬度) $logo_qr_height = $logo_height / $scale; //組合以後logo的高度 $from_width = ($QR_width - $logo_qr_width) / 2; //組合以後logo左上角所在座標點 /** * 從新組合圖片並調整大小 * imagecopyresampled() 將一幅圖像(源圖象)中的一塊正方形區域拷貝到另外一個圖像中 */ imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height); /** * 若是想要直接輸出圖片,應該先設header。header("Content-Type: image/png; charset=utf-8"); * 而且去掉緩存區函數 */ //獲取輸出緩存,不然imagepng會把圖片輸出到瀏覽器 ob_start(); imagepng($QR); imagedestroy($QR); imagedestroy($logo); $contents = ob_get_contents(); ob_end_clean(); return $contents; } /** * curl 請求 * @param [type] $url [請求地址] * @param string $data [參數] * @param string $method [請求方式] * @return [type] [description] */ public function httpRequest($url, $data = '', $method = 'GET') { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($curl, CURLOPT_AUTOREFERER, 1); if ($method == 'POST') { curl_setopt($curl, CURLOPT_POST, 1); if ($data != '') { curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } } curl_setopt($curl, CURLOPT_TIMEOUT, 30); curl_setopt($curl, CURLOPT_HEADER, 0); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); $result = curl_exec($curl); curl_close($curl); return $result; } } date_default_timezone_set('PRC'); $a = new getMiniQrcode(); $id = $_GET['id']; $a->index($id);
訪問該PHP文件 傳入 ?id=...php
1html