【Thinkphp】生成二维码

/** 功能&＃xff1a;生成二维码* &＃64;param string $qr_data 手机扫描后要跳转的网址* &＃64;param string $qr_level 默认纠错比例 分为L、M、Q、H四个等级&＃xff0c;H代表最高纠错能力* &＃64;param string $qr_size 二维码图大小&＃xff0c;1&＃xff0d;10可选&＃xff0c;数字越大图片尺寸越大* &＃64;param string $save_path 图片存储路径* &＃64;param string $save_prefix 图片名称前缀*/function createQRcode($save_path,$qr_data,$qr_level&＃61;&＃39;L&＃39;,$qr_size&＃61;5,$save_prefix&＃61;&＃39;qrcode&＃39;){include &＃39;phpqrcode.php&＃39;;$qr&＃61;new \QRcode();if(!isset($save_path)) return &＃39;&＃39;;//设置生成png图片的路径$PNG_TEMP_DIR &＃61; & $save_path;//导入二维码核心程序//检测并创建生成文件夹if (!file_exists($PNG_TEMP_DIR)){mkdir($PNG_TEMP_DIR);}$filename &＃61; $PNG_TEMP_DIR.&＃39;test.png&＃39;;$errorCorrectionLevel &＃61; &＃39;L&＃39;;if (isset($qr_level) && in_array($qr_level, array(&＃39;L&＃39;,&＃39;M&＃39;,&＃39;Q&＃39;,&＃39;H&＃39;))){$errorCorrectionLevel &＃61; & $qr_level;}$matrixPointSize &＃61; 4;if (isset($qr_size)){$matrixPointSize &＃61; & min(max((int)$qr_size, 1), 10);}if (isset($qr_data)) {if (trim($qr_data) &＃61;&＃61; &＃39;&＃39;){die(&＃39;data cannot be empty!&＃39;);}//生成文件名 文件路径&＃43;图片名字前缀&＃43;md5(名称)&＃43;.png$filename &＃61; $PNG_TEMP_DIR.$save_prefix.md5($qr_data.&＃39;|&＃39;.$errorCorrectionLevel.&＃39;|&＃39;.$matrixPointSize).&＃39;.png&＃39;;//开始生成$qr::png($qr_data, $filename, $errorCorrectionLevel, $matrixPointSize, 2);} else {//默认生成$qr::png(&＃39;PHP QR Code :)&＃39;, $filename, $errorCorrectionLevel, $matrixPointSize, 2);}if(file_exists($PNG_TEMP_DIR.basename($filename)))return basename($filename);elsereturn FALSE;}

public function qrcode(){$save_path &＃61; isset($_GET[&＃39;save_path&＃39;])?$_GET[&＃39;save_path&＃39;]:&＃39;./Public/qrcode/&＃39;; //图片存储的绝对路径$web_path &＃61; isset($_GET[&＃39;save_path&＃39;])?$_GET[&＃39;web_path&＃39;]:&＃39;/Public/qrcode/&＃39;; //图片在网页上显示的路径$qr_data &＃61; isset($_GET[&＃39;qr_data&＃39;])?$_GET[&＃39;qr_data&＃39;]:&＃39;http://www.baidu.com/&＃39;; //二维码内容$qr_level &＃61; isset($_GET[&＃39;qr_level&＃39;])?$_GET[&＃39;qr_level&＃39;]:&＃39;H&＃39;;$qr_size &＃61; isset($_GET[&＃39;qr_size&＃39;])?$_GET[&＃39;qr_size&＃39;]:&＃39;10&＃39;;$save_prefix &＃61; isset($_GET[&＃39;save_prefix&＃39;])?$_GET[&＃39;save_prefix&＃39;]:&＃39;ZETA&＃39;;if($filename &＃61; $this->createQRcode($save_path,$qr_data,$qr_level,$qr_size,$save_prefix)){$pic &＃61; $web_path.$filename;}echo "$pic."&＃39;>";}