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这是我从 devshed 获得的脚本。它在 Opera 和其他(而不是 IE)中运行良好。我的问题是:这个脚本如何在没有 的情况下工作$_FILES['userfile']['name'] & $_FILES['userfile']['tmp_name']

<?php
    class FileUploader
    {
    private $uploadFile;
    private $name;
    private $tmp_name;
    private $type;
    private $size;
    private $error;
    private $allowedTypes=array
    ('image/jpeg','image/gif','image/png','text/plain','application/ms-word');

    public function __construct($uploadDir="./uploadfl/")
    {
    if(!is_dir($uploadDir)){
    throw new Exception('Invalid upload directory.');
    }

    if(!count($_FILES))
    {
    throw new Exception('Invalid number of file upload parameters.');
    }

    foreach($_FILES['userfile'] as $key=>$value)
    {
    $this->{$key}=$value;
    }

    if(!in_array($this->type,$this->allowedTypes))
    {
    throw new Exception('Invalid MIME type of target file.');
    }

    $this->uploadFile=$uploadDir.basename($this->name); 

    }
    // upload target file to specified location

    public function upload(){
    if(move_uploaded_file($this->tmp_name,$this->uploadFile)){
    return true;
    }


    }
    }
    ?>

    <?php
      if($_POST['send']){
    //require_once 'fileuploader.php';
    $fileUploader=new FileUploader();
    if($fileUploader->upload()){
    echo 'Target file uploaded successfully!';
    }
    }
?> 
4

1 回答 1

2

回答你的问题(这个脚本如何在没有 $_FILEs['userfile']['name'] & $_FILEs['userfile']['tmp_name'] 的情况下工作):没有它它确实可以工作,因为数组键被分配为属性这里:

$this->{$key}=$value;

因此,现在可以将其称为 $_FILES['userfile']['tmp_name'] 而不是

$this->tmp_name

您已经得到了关于为什么它可能不适用于所有浏览器的回复。

希望有帮助,斯特凡

于 2012-04-26T13:42:59.390 回答