Increment & Decrement

Question

Hello Friends!

Learning PHP with Solo Learn.

I have some doubts to understand the increment & decrement.

Kindly help me!

$a = 2; $b = $a++; // $a=3, $b=2
$a = 2; $b = ++$a; // $a=3, $b=3

Thanking you.

Keshav Murthy

Answer 1

Let's say we have $y = ++$x
X is incremented then it is assigned to the y.
If we have $y = $x++, x is assigned to y, then it is incremented...

$x = 3
$y = $x++ // $y is 3, then x is incremented so $x = 4

$x = 3
$y = ++$x // $x is incremented so, $x = 4. Then it is assigned to y, so $y = 4

It works the same for the decrementing!

Hope this makes sense! 😃😄

Answer 2

@Gami

Thank you so much Sir!

Well explained.....😃😇