3
How the multiplication operator works when declared twice, for example:
$valor = 10**5;
1 answer
2
Works as an operator Exponential
The exponential operator is used when we want to raise some value to power, this operator is represented in PHP by ( * * ) (Two Asterisk).
The Exponential Operator was introduced in PHP as of version 5.6.
<?php
$num1 = 10;
$num2 = 2;
// 10*10
$potencia = $num1 ** $num2;
echo $potencia;
/* O resultado exibido é => 100 */
For your example, 10 to 5 10**5 would be:
10*10*10*10*10 = 100.000
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Works as an Exponential operator: 10 to 5 power
– Boi Programador
'**' is not multiplication is potentiation. See Operators.
– Augusto Vasques