Description:
------------
Try the script below using a form input page with a field for the variable $month and point the action to a page containing the script. Try all the cases and see the result for the value of $month = 08 and $month = 09.
And try also to input "00" or "any string".

For god sake I want to know what's wrong with this code ?

Reproduce code:
---------------
<?
switch ($month){ 
case (01): 
$mon="jan"; 
break;
case (02): 
$mon="feb"; 
break;
case (03): 
$mon="mar"; 
break;
case (04): 
$mon="apr"; 
break;
case (05): 
$mon="may"; 
break;
case (06): 
$mon="jun"; 
break;
case (07): 
$mon="jul"; 
break;
case (08): 
$mon="aug"; 
break;
case (09): 
$mon="sep"; 
break;
case (10): 
$mon="oct"; 
break;
case (11): 
$mon="nov"; 
break;
case (12): 
$mon="dec"; 
break;
default: 
print "INVALIDE MONTH !!";
}
echo ($mon);
echo ($month);
?>

Expected result:
----------------
I expect to see a logical output regarding to the simple code above, I want to see the script printing "aug08" when I insert the value "08" for the month in the form. same thing for "09".

and when we put "00", "any string" or BLANK the output is "aug + USED_STRING"

Why all other values work fine ?

Actual result:
--------------
Actually, when we input $month = 08 the result is "WRONG MONTH08" even though the case was correctly predicted in the code. Same thing for "09".

Does PHP have any problem with August and September ?