README

方法

1. 文件 (string $_target_dir)
   $_target_dir    文件保存的目标目录

2. upload (string $param_name) : boolean
   $param_name    HTML表单输入字段名称

3. delFileByName (string $name) : boolean
   $name    文件名

4. getFileByName (string $name) : boolean
   $name    文件名

5. getFileList () : string
   

6. getTargetFolder () : string
   

7. setAllowedExtensions (array<mixed,string> $extensions)
   $extensions    允许的扩展类型

8. setOnlyAllowImage (boolean $image_only)
   $image_only    仅允许图片文件类型

9. setMaxFileSize (integer $max_file_size)
   $max_file_size    允许的最大文件大小（字节）

10. setScanFile (boolean $scan_file)
    $scan_file    启用病毒文件扫描

示例

$fm = new File("uploads/");
$fm->setAllowedExtensions(["PNG", "GIF", "TXT"]);
$fm->setOnlyAllowImage(true);
$fm->setMaxFileSize(5120);
$fm->setScanFile(true);

if (isset($_POST["act"])) {

        // upload file
        if ($_POST["act"] === "upload") {
                try {
                        $fm->upload("fileToUpload");
                }
                catch (Exception $e) {
                }
        }
        
        // download file by name
        elseif ($_POST["act"] === "download") {
                if (isset($_POST["filename"])) {
                        try {
                                $fm->getFileByName($_POST["filename"]);
                        }
                        catch (Exception $e) {
                        }
                }
        }
        
        // delete file by name
        elseif ($_POST["act"] === "delete") {
                if (isset($_POST["filename"])) {
                        try {
                                $fm->delFileByName($_POST["filename"]);
                        }
                        catch (Exception $e) {
                        }
                }
        }
}