Autoincrement

$a = 5;

$a++; # $a now equals 6

$b = $a++; # $a is equal to 7, but $b is equal to 6

$c = ++$b; # $b and $c are equal to 7

To increment a variable by 1, use the ++

operator

$a = 5;

$a--; # $a now equals 4

$b = $a--; # $a is equal to 3, but $b is equal to 4

$c = --$b; # $b and $c are equal to 3

To decrement a variable by 1, use --

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