What is the meaning of the statement of the twice multiplication operator?

Question

How does the multiplication operator work when declared twice, for example:

$valor = 10**5;

3

php operadores números cálculo

Author: raphael, 2020-04-30

Source

1 answers

score 2 · Accepted Answer

Works as exponential operator

The exponential operator is used when we want to raise some value to power, this operator is represented in PHP by ( * * ) (two asterisks).

The exponential operator has been introduced in PHP since version 5.6.

<?php
  $num1 = 10;
  $num2 = 2;

  // 10*10
  $potencia = $num1 ** num2;

  echo $potencia;

  /* O resultado exibido é => 100 */

In the case of your example, 10 raised to 5 10**5 would be:

10*10*10*10*10 = ‭100.000‬