userlevel == 0){
echo "ERROR: Guests cannot upload images for rating.";
exit;
}
//define a maxim size for the uploaded images in Kb
define ("MAX_SIZE","100");
//This function reads the extension of the file. It is used to determine if the file is an image by checking the extension.
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
//This variable is used as a flag. The value is initialized with 0 (meaning no error found)
//and it will be changed to 1 if an errro occures.
//If the error occures the file will not be uploaded.
$errors=0;
//checks if the form has been submitted
if(isset($_POST['Submit']))
{
//reads the name of the file the user submitted for uploading
$image=$_FILES['image']['name'];
//if it is not empty
if ($image)
{
//get the original name of the file from the clients machine
$filename = stripslashes($_FILES['image']['name']);
//get the extension of the file in a lower case format
$extension = getExtension($filename);
$extension = strtolower($extension);
//if it is not a known extension, we will suppose it is an error and will not upload the file,
//otherwise we will do more tests
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
//print error message
echo '
Unknown extension!
';
$errors=1;
}
else
{
//get the size of the image in bytes
//$_FILES['image']['tmp_name'] is the temporary filename of the file
//in which the uploaded file was stored on the server
$size=filesize($_FILES['image']['tmp_name']);
//compare the size with the maxim size we defined and print error if bigger
if ($size > MAX_SIZE*1024)
{
echo '
You have exceeded the size limit! The max size images can be is ' . MAX_SIZE . ' kb.';
$errors=1;
}
//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="user_images/".$image_name;
//we verify if the image has been uploaded, and print error instead
$copied = copy($_FILES['image']['tmp_name'], $newname);
if (!$copied)
{
echo '
Copy unsuccessfull! Try again!
';
$errors=1;
}
else{
//now we are going to check size of the image
list($width, $height, $type, $attr) = getimagesize($newname);
if($width>0)
{
echo "
File is too big! $width
";
$errors=1;
}
}}}}
//If no errors registred, print the success message
if(isset($_POST['Submit']) && !$errors)
{
$uploaded = 'http://boblert.com/' . $newname;
$ip = $_SERVER['REMOTE_ADDR'];
$sql="INSERT INTO rating (img, submitterip, comment, username)
VALUES
('$image_name', '$ip', '$_POST[summary]', '$session->username')";
if (!mysql_query($sql))
{
die('Error: ' . mysql_error());
}
$query = mysql_query("SELECT * FROM rating ORDER BY id DESC LIMIT 1");
$row = mysql_fetch_array($query);
echo "