Problem with $_FILES[] validation???

[nvidia]

Hi,

 

  i have created a form used to upload .jpg files onto my server under: www\shanghai2010\images. I am trying to validate the file that i upload already exists or not and if not, add the image file to the server. However, i have a .jpg image to test against in my www\shanghai2010\images\ folder but when i upload a file with the same name as the one in my server it ALWAYS goes into my success message:

 

if(isset($_POST['action']) and $_POST['action'] == 'upload')
{ 
    $description = mysqli_real_escape_string($link, $_POST['description']);
    $category = mysqli_real_escape_string($link, $_POST['category']);
    $file = ($_FILES['photo']['name']);
    
    $target = 'www/shanghai2010/images/';
    $target .= basename($_FILES['photo']['name']);
    

     
    
    // Checkk if a file was actually uploaded
    if(!is_uploaded_file($_FILES['photo']['tmp_name']) )
    {
        $error = 'Error, there was no file uploaded';
        include 'error.html.php';
        exit();
    }
    
    //$dirname = "C:\\wamp\\www\\Shanghai_2010\\images";
    //$dh = opendir($dirname) or die("couldn't open directory");
    
    if(!isset($_FILES['photo']))
    {
        include 'imageuploadform.html.php';
        
    }
    else
    {
        if(file_exists($target))
      {
          $error = 'This file already exists on the server';
           
          include 'error.html.php';
          exit();
      }
      else
      {
          echo ($_FILES['photo']['tmp_name']);
   
          // move file to server
          echo 'success this file does not exist on server';
           
      }
    }
    
}
?>

 

I've checked the file permissions on my windows machine and they are fine, but i don't understand why whenever i try to upload any .jpg file EVEN if it has the same name as the one in my server, it always goes into my success message. I believe therefore there is something wrong with the line:  if(file_exists($target)) because php does not go into that section.

 

While doing some googling, came across this code

 

function recursive_file_exists($filename, $directory)
{
    try
    {
        /*** loop through the files in directory ***/
        foreach(new recursiveIteratorIterator( new recursiveDirectoryIterator($directory)) as $file)
        {
            /*** if the file is found ***/
            if( $directory.'/'.$filename == $file )
            {
                return true;
            }
        }
        /*** if the file is not found ***/
        return false;
    }
    catch(Exception $e)
    {
        /*** if the directory does not exist or the directory
            or a sub directory does not have sufficent
            permissions return false ***/
        return false;
    }
//}
//




if(recursive_file_exists('imageuploadform.html.php', '/www/shanghai2010/'))
{
    echo 'file found';
}
else
{
    echo 'File Not Found';
}

 

which would check to see if a file exists in a directory. So i tested it aginast my file and everytime it would echo File Not Found. My php file called index.php resides in the folder shanghai2010, and ofcourse there is a folder called images with my single .jpg image used to test against.  Please help if you can guys. I need expert opinon on this

[pdkv2]

check your file path "/www/shanghai2010/"

try using entire file path.

in case of shared hosting the file path will have some more directories before /www/shanghai2010/

ex /xxxx/www/shanghai2010/