PHP

php increment and decrement

// Php increment and decrement: Just print it then understand
$n =9;

echo $n++;
echo PHP_EOL;
echo ++$n;
echo PHP_EOL;
echo --$n;
echo PHP_EOL;
echo $n--;
echo PHP_EOL;

echo "Another Example======
";


$a = 7;
$b = $a++;

echo $b."
".$a;

php decrement variable by 1

$variable--;

php decrement variable

$var = 1;
// use value (1) THEN decrement by one
$var--;
// decrement by one THEN use value (0)
--$var;

// aside: decrement by custom amount (1 emulates the above)
$var -= 1;
$var -= $step;