MAX_FILE_SIZE is not working

[toxic_brain]

i am using html form to upload images.

<input type="hidden" name="MAX_FILE_SIZE",value="1024" />
 <br><input type="file" name="filename" /> 

which will allow files less than 1 KB,

but i am able to upload files of 2 KB, 10 KB etc

and the

$fsize=$_FILES['filename']['size'];

returns appropriate file sizes in bytes..

i am confused.. what is wrong..

am using
IE 6.0

[LoganK]

MAX_FILE_SIZE is an HTML attribute, and as such, browsers are free to interpret (or mis-interpret) as they wish...it's not the safest thing to use if that's the only thing you're validating against.

Yes, the $_FILES['filename']['size'] variable will return the file size in bytes. From that, it's really simple to convert it to kilo- or mega-bytes for comparison, or converting the kilo- and mega-bytes down to regular bytes for comparison - it's just simple math (hint: 1 bit = 1 alphanumeric character, 8 bits to a byte, 1024 x 1 byte = 1 kilobyte, 1024 x 1 kilobyte = 1 megabyte).