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天蓬老师批改状态：合格
老师批语：完成的相当出色, 提个小建议, 如果这个类不是final, 建议将内部的self全部替换成static, 以提升该类的扩展性
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>文件上传测试页</title><style>*{margin: 0;padding: 0}main{margin: 10px auto;width: 940px;}form{width:940px;display: flex;flex-flow: row nowrap}div{display: flex;flex-flow: column nowrap;width:300px;height: 220px;border: 1px solid #55ce9f;align-items: center;margin:10px}input{border: 1px solid #55ce9f;border-radius: 5px;margin: 5px}button{margin-top: auto;width: 100px;}</style></head><body><main><form action="fileupload.php" method="post" enctype="multipart/form-data"><div><h2>单个文件上传</h2><input type="file" name="uploadfile" ><button>提交</button></div><div><h2>多个文件上传</h2><input type="file" name="uploadfiles[]"><input type="file" name="uploadfiles[]"><input type="file" name="uploadfiles[]"><input type="file" name="uploadfiles[]"><button>提交</button></div><div><h2>单框上传多个文件</h2><input type="file" name="uploadfileclass[]" multiple="multiple"><button>提交</button></div></form></main></body></html>
namespace php\demo\lib;use php\demo\lib\MyFileUploadException;class FileUpload{/** @paparm $fileFormName 用来存放表单空间变量名称，string类型* @paparm $fileArr 用来存放待上传的数组 array类型* @paparm $fileExtensionAllow 用来存放可上传的文件类型 array类型* @paparm $flag 用来标示是否是多文件上传控件 true为多文件上传 false为单文件上传，默认值为false* @paparm $uploadDir 用来设置文件存路径 默认值为D:\phpstudy_pro\WWW\php\demo\upload\ 需先创建文件夹* @paparm $extension 用来存放文件扩展名，便于和可上传类型进行比对*/private static $fileFormName = null;private static $fileArr = [];private static $fileExtensionAllow = [];private static $flag = false;private static $uploadDir = 'D:\phpstudy_pro\WWW\php\demo\upload\\';private static $extension;//私有构造函数，防止实例化类private function __construct(...$paparm){}//私有克隆函数，防止实例化类private function __clone(){}//保存文件方法public static function save(...$paparm){list($fileFormName, $fileExtensionAllow, $flag, $uploadDir) = $paparm;self::$fileFormName = $fileFormName;self::$fileExtensionAllow = $fileExtensionAllow;if (!is_null($uploadDir))self::$uploadDir = $uploadDir;if (!is_null($flag))self::$flag = $flag;self::setSave();}//将多文件上传时的数组进行整理protected static function setArray(){$n = count($_FILES[self::$fileFormName]['name']);for ($i = 0; $i < $n; $i++) {self::$fileArr[$i]['name'] = $_FILES[self::$fileFormName]['name'][$i];self::$fileArr[$i]['type'] = $_FILES[self::$fileFormName]['type'][$i];self::$fileArr[$i]['tmp_name'] = $_FILES[self::$fileFormName]['tmp_name'][$i];self::$fileArr[$i]['error'] = $_FILES[self::$fileFormName]['error'][$i];self::$fileArr[$i]['size'] = $_FILES[self::$fileFormName]['size'][$i];}return self::$fileArr;}//设置文件保存protected static function setSave(){//判断是否为多文件上传if (self::$flag)self::$fileArr = self::setArray();else//为了统一多文件上传和单文件上传的数组格式，将单文件上传时的数组赋值给一个索引为0的数组self::$fileArr[0] = $_FILES[self::$fileFormName];echo '<pre>' . print_r(self::$fileArr, true) . '</pre>';$i = 0;foreach (self::$fileArr as $value) {//$i用来防止文件重名$i++;try {//查看数组中索引为error的值，看是否存在错误$error = $value['error'];if ($error > 0) {switch ($error) {case UPLOAD_ERR_INI_SIZE:throw new MyFileUploadException('文件超过系统指定大小', 101);break;case UPLOAD_ERR_FORM_SIZE:throw new MyFileUploadException('文件超过表单设定大小',102);break;case UPLOAD_ERR_PARTIAL:throw new MyFileUploadException('文件部分被上传',103);break;case UPLOAD_ERR_NO_FILE:throw new MyFileUploadException('没有文件被上传',104);break;case UPLOAD_ERR_NO_TMP_DIR:throw new MyFileUploadException('未找到临时文件夹',105);break;case UPLOAD_ERR_CANT_WRITE:throw new MyFileUploadException('文件写入失败',106);break;default:throw new MyFileUploadException('未知错误',107);break;}}if (true === is_uploaded_file($value['tmp_name'])) {self::$extension = pathinfo($value['name'])['extension'];if (!in_array(self::$extension, self::$fileExtensionAllow))throw new MyFileUploadException('文件类型非法',201);$newFileName = self::$uploadDir . "upload{$i}" . date('Ymd', time()) . md5($value['name']) .'.'. self::$extension;if (move_uploaded_file($value['tmp_name'], $newFileName))echo '<script>alert("上传成功");location.href="test.html";</script>';elsethrow new MyFileUploadException('文件保存失败',202);}} catch (MyFileUploadException $e) {print $e;}}}}
namespace php\demo;require 'autoload.php';use php\demo\lib\FileUpload;$allow = ['pdf'];if(empty($_FILES['uploadfile']['name'])&&empty($_FILES['uploadfiles']['name'][0])&&empty($_FILES['uploadfileclass']['name'][0]))echo '未选择上传文件';else{if(!empty($_FILES['uploadfile']['name'])){FileUpload::save('uploadfile', ['pdf']);}if(!empty($_FILES['uploadfiles']['name'][0])){FileUpload::save('uploadfiles', $allow, true);}if(!empty($_FILES['uploadfileclass']['name'][0])){FileUpload::save('uploadfileclass', $allow, true);}}
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