my script is not reading *.txt file - php

Question

I have a form which takes two values. One takes a .txt file, the file at which some links are hard coded and a text field which takes a url. When I press submit it takes that url and checks on every link that is on *.txt file. Hope you understand what I am saying if not then please comment I will clarify it. Now I have problems. My code does not work until the file at which links are, is not at my server. I don't how to handle this problem. I have done my search, I also try mysql but that is not ok for me. My script is this:
Enter your file :<input type="file" name="ufile" />
Enter your site name :<input type="text" name="utext" />
<input type="submit" value="Check" />
Now, my php script is this:
$needle = $_POST['utext'];
$file = $_FILES['ufile'];
$new = file($file, FILE_IGNORE_EMPTY_LINES | FILE_SKIP_EMPTY_LINES);
$new = array_map('trim', $new);
echo 'Total entries are: '.count($new).'<br />';
$found = array();
$notfound = array();
foreach ($new as $check) {
echo "<table border='1'><tr>";
echo "<td>Processing</td> <td>", $check,"</td></tr>";
$a = file_get_contents($check);
if (strpos($a, $needle)) {
echo "<td><font color='green'>Found:</font></td>";
$found[] = $check;
} else {
echo "<td><font color='red'>Not Found</font></td>";
$notfound[] = $check;
}
echo "</tr></table>";
}
echo "Matches ".count($found)."<br />";
echo "Not Matched ".count($notfound);

Answer 1

Is there any reason you never read the documentation about how PHP handles uploads in first place? That would make clear that $_FILES['ufile'] is array, so your code cannot work. If you really want to continue writing code without understanding it first, then replace:
$file = $_FILES['ufile'];
with
$file = $_FILES['ufile']['tmp_name'];