php fuction for multiplying numbers

[684425]

Is there any function in php lib that does the following

$a = 1238;
$n = 48; // 1*2*3*8

or I will have to create one for my script?

(I want to do it for both client and server sides based on request sent by user. I actually want it in php that is why i asked it here, but if the solution (as function) is available in javascript (not jQuery) please share or guide me.)

Edited January 5, 2021 by 684425

[gw1500se]

Not directly but writing your own is pretty simple in both PHP and Javascript.

[Barand]

PHP has array_product(). EG

echo array_product([1, 2, 3, 8]);       // 48

If you want to be able to supply separate arguments to a function instead of an array EG

echo mul(1, 2, 3, 2, 4);

then you can define the function as

function mul(...$a)
{
    return array_product($a);
}

echo mul(3,8,2);      //48
echo mul(1,2,3,2,2,2) //48

 

Edited January 5, 2021 by Barand
extend reply

[gizmola]

Adding onto Barand's reply, here's the technique to ingest the original integer and turn it into an array of digits.

 

function mul(int $int) {
    return array_product(str_split($int));
}

echo mul(12345);
// 120