PHP file upload problem

[bnrj_sjy]

I am new to php and is trying to construct a file upload script that will only allow pdf file

i am using the following codes for my form.php

<form action="upload.php" method="post"
enctype="multipart/form-data">
  <h4>Single File Upload<br />
  </h4>
  <label for="file">Filename:</label>
<input type="file" name="file" id="file" />
<br /><br />

<input type="submit" name="submit" value="Submit" />
</form> 

and the following for the upload.php

<?php
if (($_FILES["file"]["type"] == "application/pdf")
&& ($_FILES["file"]["size"] < 200000))
  {
  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("upload/" . $_FILES["file"]["name"]))
      {
      echo $_FILES["file"]["name"] . " already exists. ";
      }
    else
      {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
      }
    }
  }
else
  {
  echo "Invalid file";
  }
?>

when i run it on localhost it shows the file uploaded successfully

but when i run it on server it gives the message Invalid File

please help me regarding it

[drf1229]

Are you sure you uploaded the same file both times? I've never encountered this error, however since I'm the only one who uses file uploads on my website, I took off all of the file limits. Try taking off the first limit:

if (($_FILES["file"]["type"] == "application/pdf")
&& ($_FILES["file"]["size"] < 200000)){
}

and...

else{
print "Invalid file";
}
  {

because that's the error message you are getting. If you continue to get an error message generated by your program, delete file limit that follows. If you still want to keep your file limits, double check you have the right file types and/or sizes. Good luck!

[Gouri]

I tried that code. It is ok and working fine.

check what is the maximum upload size in the server.

One more thing if POST size exceeds server limit then $_POST and $_FILES arrays becomes empty.

[descalzo]

Add debugging code to see what the server thinks certain values are ......

<?php
if (($_FILES["file"]["type"] == "application/pdf")
&& ($_FILES["file"]["size"] < 200000))
  {
  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("upload/" . $_FILES["file"]["name"]))
      {
      echo $_FILES["file"]["name"] . " already exists. ";
      }
    else
      {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
      }
    }
  }
else
  {
 
    echo "Invalid file";
 
  ##************   DEBUGGING CODE:  ************##
 
  echo  "<br />File type is : " . $_FILES["file"]["type"] . "<br />File size is: " . $_FILES["file"]["size"]  ;
 
 
  }
?>

Also, you can test the max upload size by testing:

$max = ini_get( 'upload_max_filesize' ) ;

echo "Max is $max" ; 

I show it to be 32M on Chopin.