PHP Upload Won't Work - php

Question

I made a php upload script that would be executed after a form with the upload was submitted.
$game_tmp = $game_file['tmp_name'];
$game_name = $game_file['name'];
$game_dest = "/games/" . game_name;
if (move_uploaded_file($game_tmp, $game_dest)) {
echo "<b>SUCCESS:</b><br />";
}
else {
echo "Error.";
}
It always output Error, so I checked my php.ini file and phpinfo(). my php.ini shows upload_tmp_dir with no value and so does the value in phpinfo(). I changed the calue of the directory to /upload, and changed the open_basedir to have a value of upload_tmp_dir. Yet, when I look into phpinfo(), it still shows upload_tmp_dir with a local and master value of no value. I believe this is the problem that is stopping my upload script from working. I created a /upload folder also and gave its permission value 777. Yet, this problem persists. I am not sure what is causing this problem.

Answer 1

Try this, you must use the $_FILE super global:
if($_FILES["game_file"]["error"] == UPLOAD_ERR_OK) {
$game_tmp = $_FILES['game_file']['tmp_name'];
$game_name = $_FILES['game_file']['name'];
$game_dest = "/games/" . $game_name;
if (move_uploaded_file($game_tmp, $game_dest)) {
echo "<b>SUCCESS:</b><br />";
}
else {
echo "Error.";
}
}

Answer 2

if upload_tmp_dir is not specified, php will use system's default tmp directory. You can use sys_get_temp_dir() function to identify temporary directory being used by PHP.
Have you tried printing $game_file var?
If not, try print_r($game_file) or var_dump($game_file) to view if its actually being set. You can also print $_FILE to see error message (http://php.net/manual/en/features.file-upload.errors.php)
move_uploaded_file could fail for many reason. Also, confirm if the destination directory exists and is writable.

Answer 3

Typos:
$game_dest = "/games/" . game_name;
^---you forgot a $ here
That's an undefined constant, so PHP will "politely" treat it as an unquoted string, and you're generating "/games/game_name" instead.
never EVER do devel/debug work in PHP with display_errors and error_reporting turned off. It's the equivalent of going "lalalalala can't hear you" with your fingers stuffed in your ears.
And you're also simply assuming your upload succeeded. There's a ['error'] parameter in $_FILES for a reason. Check it FIRST, before you start fiddling with a file that may not even be there.