What is the correct way to represent exponents in PHP?

In PHP, the correct way to represent exponents is by using the `**` operator. This operator raises the left operand to the power of the right operand. For example, to calculate 2 raised to the power of 3, you would write `2 ** 3` in PHP.

// Calculate 2 raised to the power of 3
$result = 2 ** 3;
echo $result; // Output: 8