having difficulty in finding the upload file directory - php

Question

I have made a php code to upload a file....It uploads it sucessfully...but how do i phsicaly go and check where it is...?
NOTE : i am getting fail as output from the move_uploaded_file ()
here's my code :
<?php
$allowedExts = array("c", "cpp", "py", "java");
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp);
if ( ($_FILES["file"]["size"] < 100000) && in_array($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("upload/" . $_FILES["file"]["name"])) {
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
mkdir ("./upload");
if (move_uploaded_file($_FILES["file"]["tmp_name"],"./upload/" . $_FILES["file"]["name"]))
{
echo "sucess";
}
else
{
echo "fail";
}
}
}
}
else
{
echo "Invalid file";
}
?>

Answer 1

you first check if move_uploaded_file actually able to move file or not as the directory you are moving must have write permissions otherwise move_uploaded_file fails
http://php.net/manual/en/function.move-uploaded-file.php
so must check like
if(move_uploaded_file($_FILES["file"]["tmp_name"],"./upload/" . $_FILES["file"]["name"])
//file moved
else
//error