Two ** in PHP can directly find the nth power of a number. Why is there still a pow() function?

<code>$a = 2**6;
echo $a;
$b = pow(2,6);
echo $b;</code>

?>

Reply content:

<code>$a = 2**6;
echo $a;
$b = pow(2,6);
echo $b;</code>

?>

You have to look at when this operator was implemented

https://wiki.php.net/rfc/pow-...

Because it needs to be backward compatible