将变量中的两个值相乘

Question

I have a string wich contains 2 values:

$total = '100x100';

It can also be

$total = '10x10';

I want to multiply the 2 values (100*100) and at the same time eliminate the 'x' so I can just have it to say '10000' for the first one or '100' for the second one.

I already eliminated the 'x':

$total = str_replace('x', '', $total);

What can I do now to multiply both?

Answer 1

$values = explode('x',$total);
array_product($values); // so even "10x40x20" is allowed and would work