PHP file upload not working in centos server

Question

These are the codes i use for a file upload. Everything works fine in Xammp windows. But its not working under centos server. It throws the error "Invalid file".

upload.php

   <?php

    $allowedExts = array("json");
    $temp = explode(".", $_FILES["file"]["name"]);
    $extension = end($temp);

    if ((($_FILES["file"]["type"] == "application/json"))
          && ($_FILES["file"]["size"] < 20000) && in_array($extension, $allowedExts))
    {

      if ($_FILES["file"]["error"] > 0)
       {
         echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
       }

       else
         {
           echo "Upload: " . $_FILES["file"]["name"] . "<br>";
           echo "Type: " . $_FILES["file"]["type"] . "<br>";
           echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
           echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";

          if (file_exists("uploads/" . $_FILES["file"]["name"]))
            {
             echo $_FILES["file"]["name"] . " already exists. ";
            }
            else
            {
           $dir="uploads";
               if ($handle = opendir($dir)) {
               while (false !== ($entry = readdir($handle))) {
               if ($entry != "." && $entry != "..") {
           unlink("uploads/$entry");
            }
          }
          closedir($handle);
        }             
         move_uploaded_file($_FILES["file"]["tmp_name"],
         $f="uploads/" . $_FILES["file"]["name"]);
     chmod($f, 0777);
         echo "Stored in: " . "uploads/" . $_FILES["file"]["name"];
     header("Location: user.php");
        }
      }
   }
  else
   {
     echo "Invalid file";
   }


  ?>

HTML

     <form action="upload.php" method="POST" enctype="multipart/form-data">
     <label for="file"><span style="color:#ffffff;">Upload File:</span></label>
     <input type="file" name="file" id="file">
     <input class="btn btn-success btn-block" type="submit" name="submit" value="Submit">

The uploaded file is a Json file and its file size is 1.02kb.

Someone please help me solve this.

Multiple PHP issues here: 1. You didn't check the result of move_uploaded_file(); 2. you chmod file to 777 which poses security error; 3. (recommendation) you didn't call exit after header('Location: ...') — Raptor
– Raptor, Commented Mar 25, 2014 at 8:54
@Raptor done. the uploaded file is a json file with 1.02kb size — winnyboy5
– winnyboy5, Commented Mar 25, 2014 at 8:54
@Raptor I used 777 to check weather the issue is caused by permissions — winnyboy5
– winnyboy5, Commented Mar 25, 2014 at 8:56

Dinesh Babu · Accepted Answer · 2014-03-25 08:47:41Z

3

Use this it will work,

Replace below line,

move_uploaded_file($_FILES["file"]["tmp_name"], $f="uploads/" . $_FILES["file"]["name"]);

with the below line,

move_uploaded_file($_FILES["file"]["name"], "uploads/" . $_FILES["file"]["name"]);

And as well as check for your folder permissions, or any further doubts make a look at this,

http://www.projectpier.org/node/285

answered Mar 25, 2014 at 8:47

Dinesh Babu

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2 Comments

winnyboy5 Over a year ago

Tried it already. it executed the code but haven't uploaded the file

Dinesh Babu Over a year ago

Check for your folder permissions, or make a look at this projectpier.org/node/285

Raptor · Accepted Answer · 2014-03-25 09:09:40Z

2

If the program flow goes into "Invalid File" case, it means either:

Assume that you choose a valid file to upload

$_FILES["file"]["type"] is not application/json
$_FILES["file"]["size"] >= 20000 bytes
$extension is not json

To debug,

echo $_FILES["file"]["type"]
echo $_FILES["file"]["size"]
echo $extension

Currently there is not enough details for further diagnose your issue.

answered Mar 25, 2014 at 9:09

Raptor

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2 Comments

winnyboy5 Over a year ago

Checked it and found the source.the file type shows as "application/octet-stream" instead of "application/json"

Raptor Over a year ago

application/octet-stream is a binary byte file. Are you sure your uploaded file is a ASCII-encoded text file?

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