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======\n";
$a = 7;
$b = $a++;
echo $b."\n".$a;