问题描述：

I have a form that aims to upload pdf's, MSWord docs, MSExcel files, and MSPowerpoint.

I'm tying to do a PHP validation as follows

<?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
}

?>

Why am I not able to upload pdf-like files but can upload MSword-like files? I have seen similar questions like this but I want to know why for this particular case it is not working for me.

我有一个表格，旨在上传pdf，MSWord文档，MSExcel文件和MSPowerpoint。 p>

我打算按如下方式进行PHP验证 p>

 ＆lt;？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 \  n} 
 
？＆gt; 
  code>  pre> 
 
 为什么我无法上传类似pdf的文件但可以上传类似MSword的文件？ 我见过类似的问题，如这个，但我想知道为什么这个特殊的 如果它不适合我。 p> 
  div>

答

This is my test code:

<?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 . "
" ;
      $show .= "
file type: " . var_export($filetype,true). "
";
      $show .= "
  ###";
    }


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;
?>

Results

saved sucessfully

For uploads without the multiple set:

  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);
    }
  }
}

答

give case of whetever file type you want to upload and enjoy

 $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");
    }

尽管包含MIME类型，但不加载PDF类型文件

Results

saved sucessfully

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