尽管包含 MIME 类型，但 PDF 类型文件未加载

Question

我有一个旨在上传 pdf、MSWord 文档、MSExcel 文件和 MSPowerpoint 的表格。

我打算按如下方式进行 PHP 验证

<?php
if (isset($_FILES['fileupload'])){

  $filetype = array('application/pdf', 'application/msword', 'application/mspowerpoint');
  if (in_array($_FILES['fileupload']['type'], $filetype)){
    if(move_uploaded_file($_FILES["fileupload"]["tmp_name"], "/var/www/uploads/" . $_FILES["fileupload"]["name"])){
        $filename = basename($_FILES['fileupload']['name']);
        echo $filename;
      }//close moveupload
    }//close in_array
  }//close isset
}

?>

为什么我不能上传类似pdf的文件，但可以上传类似MSword的文件？我见过类似 this 的问题，但我想知道为什么对于这种特殊情况它对我不起作用。

Answer 1

请说明您想上传和享受的任何文件类型

 $finfo = finfo_open(FILEINFO_MIME_TYPE);
    $mime = finfo_file($finfo, $_FILES['file']['type']);
    switch ($mime) {

       case 'application/pdf':

       default:
           die("Unknown/not permitted file type");
    }

Answer 2

这是我的测试代码：

<?php 
ob_start("ob_gzhandler");
header('Content-Type: text/html; charset=utf-8');
  $filetype = array('application/pdf', 'application/msword', 'application/mspowerpoint');
  $type = $_FILES['fileupload']['type'];
  if (in_array($type, $filetype)){
    if(move_uploaded_file($_FILES["fileupload"]["tmp_name"], $_FILES["fileupload"]["name"])){
        $filename = basename($_FILES['fileupload']['name']);
        $show .= '<h2>saved sucessfully</h2>';
      }//close moveupload
    }//close in_array
    else{
      $show .= '$type = ' . $type . "\n" ;
      $show .= "\nfile type: " . var_export($filetype,true). "\n";
      $show .= "\n  ###";
    }


echo <<<EOT
<!DOCTYPE html>
<html lang="en"><head><title>Test Bed</title></head></body><pre>
$show
</pre>
in_array
application/pdf
application/pdf
<form action="#" method="post" enctype="multipart/form-data">
<input type="file" name="fileupload" />
<button>Submit</button>
</form></body></html>

EOT;
?>

结果

保存成功

对于没有多重集的上传：

  if ($_FILES["fileupload"]["error"] == UPLOAD_ERR_OK) {
    if (!in_array($_FILES['fileupload']['type'], $filetype)){
      $tmp_name = $_FILES["fileupload"]["tmp_name"];
      $filename = basename($_FILES["fileupload"]["name"]);
      move_uploaded_file($tmp_name, $filename);
    }
  }
}

尽管包含 MIME 类型，但 PDF 类型文件未加载

PDF type files not loading despite MIME type inclusion

php

pdf

file-upload

结果

保存成功