Uploading image in Android app using php script

Question

Heyy..i am using a php script to upload an image file from android app. I use HTTP Post function to upload the file(I call www.masterstroketech.org/postimage.php?fn=abc.png and then post image path). The file is being created on the server, but its size is 0 bytes.

If i use the same script on a free server at 000webhost.com then this script runs fine. What exactly is the problem?

php code is as follows :

   <?PHP
   $data = file_get_contents('php://input');
   if (!(file_put_contents($_GET['fn'],$data) === FALSE)) echo "File xfer completed.";    // file could be empty, though
   else echo "File xfer failed.";
?>

You usually do not want any request trying to overwrite any file. Secure your GET parameter. Disable that values like "/etc/passwd" are executed and overwrite files you do not want. Your non-working hoster might have security implemented to prevent this. — Sven
– Sven, Commented Oct 24, 2012 at 0:00

rgrocha · Accepted Answer · 2012-10-24 08:07:58Z

1

Extracted from the file_get_contents doc at php.net:

Reading all script input is simple task with file_get_contents, but it depends on what SAPI is being used.

Only in Apache, not in CLI:
<?php
  $input = file_get_contents("php://input");
?>

Only in CLI, not in Apache:
<?php
  $input = file_get_contents("php://stdin");
?>

In Apache php://stdin will be empty, in CLI php://input will be empyt instead with no error indication.

So seems like a problem with your local server configuration.

answered Oct 24, 2012 at 8:07

rgrocha

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