In the Do while loop Can we only use the addition or subtraction operation ?

Question

I tried to to multiplication but it either shows the same number in each line.
Somebody please explain.

<?php
$i = 5;
do {
echo "The number is " . $i . "<br/>";
$i * 2;
} while($i <= 100);
?>

Answer 1

You can do all kinds of operations. Please show your code for specific help

https://www.sololearn.com/discuss/1316935/?ref=app

Answer 2

Now, since you have updated with code:

You only did multiplication but did not assign it to the variable i again.
Use this instead
$i = $i * 2;

Answer 3

You want to change `$i * 2;` to `$i = $i * 2` or `$i *= 2`.

Answer 4

I think you can do everything that is possible outside the loop...