PHP + MYSQL file_exists

I have a directory with over 2,000 files...
They are user generated so based on the users form input the file data is saved with a random filename and whatever values they entered for name and such. I have a script that cleans out any file older than 30 days but I started noticing that I had more files left on my database than I had physically on the server so I put in place another script that would run a mysql query and then check to see if the files actually were still on the server.
What happens when I run the script is it executes within 2 seconds (which i find too quick) and it never is false!

	$conn = mysql_connect("$host","$user","$pass");
	if (!$conn) die ("Could not retrieve your information please try again later.");
//Check if file exists on database but no actual file exists
$result = mysql_query("SELECT * FROM table WHERE TO_DAYS(time)  <= TO_DAYS(NOW()) -1") or die("We are experiencing difficulties please try again later.");
$i=0;
while($row=mysql_fetch_array($result))
	{
$file = $row['finame'];	
$filename = $root .'/temp/'. $file;
echo $filename . '<br>';
if ( file_exists($filename) ) {
echo "Found $file in DB <br>";
$i++;
} else {
mysql_query("DELETE FROM mob_userips WHERE finame ='$file'");
echo "Deleted $file from DB <br>";

}
}
echo $i;

PHP:

 

Does it echo out every filename? If it does then the query is fine

 

It did echo every time...
and you know something I figured out the problem...
I was comparing my sql database count to the count that Filezilla (FTP) was giving me... I had 4000 files in the database and filezilla was only showing 1998 .... so you could see the reason for my concern....
after you made your post I dug into it and found that it was Filezilla that has a bug... all the files were accounted for correctly!

Thanks for your help!