decrement operator

[padma]

<?
$var = E;

$var++;
echo $var; // prints "F"
 -- $var;
echo $var;  // still prints "F"

?>

$var++ increments and prints "F"

--$var is not decrementing.

How do I use the incrementing and decrementing operators with characters?

Thanks

[mrskhris]

Are you trying to work with hexadecimal numbers or with characters? Decrementing operators are not supposed to work on characters.

If with characters, you would need to do the following - take a look at chr() and ord() functions. chr() will return the character according to the ascii code, ord - return ASCII code for character.
Therefore, to get the "E" from "F" you will need the following:

$a="F";

$b=ord($a);
$a=chr(--$b);