In this tutorial, you have to create 2 files for testing code.
1. limit_upload.php
2. limit_upload_ac.php
Steps
1. Create file limit_upload.php
2. Create file limit_upload_ac.php
3. Create folder "upload" for store uploaded files.
4. CHMOD your upload folder to "777"
by using your ftp software(change permission).
############### Code ############### Code
<?php
// Define file size limit
$limit_size=50000;
//set where you want to store files
//in this example we keep file in folder upload
//$HTTP_POST_FILES['ufile']['name']; = upload file name
//for example upload file name cartoon.gif . $path will be upload/cartoon.gif
$path= "upload/".$HTTP_POST_FILES['ufile']['name'];
if($ufile !=none)
{
// Store upload file size in $file_size
$file_size=$HTTP_POST_FILES['ufile']['size'];
if($file_size >= $limit_size){
echo "Your file size is over limit<BR>";
echo "Your file size = ".$file_size;
echo " K";
echo "<BR>File size limit = 50000 k";
}
else {
//copy file to where you want to store the file
if(copy($HTTP_POST_FILES['ufile']['tmp_name'], $path))
{
echo "Successful<BR/>";
echo "<img src=\"$path\" width=\"150\" height=\"150\">";
}
else
{
echo "Copy Error";
}
}
}
?>
This step, do it when you upload to real server.
This example, I use WS-FTP, right click at upload folder > FTP Commands > CHMOD(Unix) 
