php oop(__construct) 文件上传

Question

我正在处理 oop class.php 文件。我想实现函数 __contruct()。我不知道为什么它不起作用。

我觉得有错误，但不知道怎么写。 $args['file_upload'] = $_FILES['file_upload'][''] ?? NULL;

谢谢。

fileupload.class.php

public function __construct($string){
    $this->filename      = $_FILES['$string']['name']['0']; 
    $this->temp_path     = $_FILES['$string']['tmp_name']['0'];
    $this->type      = $_FILES['$string']['type']['0'];
    $this->size      = $_FILES['$string']['size']['0'];

}   
public function create() {
       if(move_uploaded_file....
}

fileupload.php

if(is_post_request()) {

        //Create record using post parameters
        $args = [];
        $args['prod_name'] = $_POST['prod_name'] ?? NULL;
        $args['file_upload'] = $_FILES['file_upload'][''] ?? NULL;

        $image = new Imageupload($args);
        $result = $image->create();

          if($result === true) {
            $new_id = $image->id;
            $_SESSION['message'] = 'The image was uploaded.';
          } else {
            // show errors
          }
        } else {
          // display the form
          $image = [];
        }

<p><input name="file_upload[]" type="file" id="file_upload[]" value=""></p>

<p>Product name: <input type="text" name="prod_name" value="" /></p>

UPDATE1函数有效

public function add_files() {

    $this->filename     = $_FILES['file_upload']['name']['0'];  
    $this->temp_path    = $_FILES['file_upload']['tmp_name']['0'];
    $this->type         = $_FILES['file_upload']['type']['0'];
    $this->size         = $_FILES['file_upload']['size']['0'];
}

$image = new Imageupload($args);
$image->add_files();

Answer 1

看起来你又在造轮子了？ :)尝试为此目的创建的库之一。 https://github.com/brandonsavage/Upload

在您的操作系统中安装 Composer 并在命令行中运行以下命令

composer require codeguy/upload

HTML

<form method="POST" enctype="multipart/form-data">
    <input type="file" name="foo" value=""/>
    <input type="submit" value="Upload File"/>
</form>

PHP

<?php
$storage = new \Upload\Storage\FileSystem('/path/to/directory');
$file = new \Upload\File('foo', $storage);

// Optionally you can rename the file on upload
$new_filename = uniqid();
$file->setName($new_filename);

// Validate file upload
// MimeType List => http://www.iana.org/assignments/media-types/media-types.xhtml
$file->addValidations(array(
    // Ensure file is of type "image/png"
    new \Upload\Validation\Mimetype('image/png'),

    //You can also add multi mimetype validation
    //new \Upload\Validation\Mimetype(array('image/png', 'image/gif'))

    // Ensure file is no larger than 5M (use "B", "K", M", or "G")
    new \Upload\Validation\Size('5M')
));

// Access data about the file that has been uploaded
$data = array(
    'name'       => $file->getNameWithExtension(),
    'extension'  => $file->getExtension(),
    'mime'       => $file->getMimetype(),
    'size'       => $file->getSize(),
    'md5'        => $file->getMd5(),
    'dimensions' => $file->getDimensions()
);

// Try to upload file
try {
    // Success!
    $file->upload();
} catch (\Exception $e) {
    // Fail!
    $errors = $file->getErrors();
}