What's b value

Question

$a=2 ;
$b=$a++;
Guys what is the answer of b

Answer 1

That is because of post increment.

Value of $a will be stored in $b and then it will increment.
But if you use pre increment then it's a different story.
Try this :
$a = 2;
$b = ++$a;
echo $b;

Answer 2

But b answer show 2 ....how 🤔

Answer 3

Sir answer 3 ...

Answer 4

Sir variable declare after the addition do not do it