将Excel数组公式转换为PHP或Javascript

Question

I want to convert {=(PRODUCT(1 + A2:A85) )} into PHP or JavaScript. I've searched google for "array excel formulas", but I could not find right result. How do I convert {=(PRODUCT(1 + A2:A85) )} ? I have array for the A2:A85 range. My array is like this:

var abc_array={2,3,4,5,67,7,8.........}. 

Answer 1

this is not tested but should work, im not the best at php so maybe someone could clean this up a little:

function product($array)
{
  $cons = $array[0];

    foreach($array as $num)
    {
        $cons = ($cons*$num);
    }

  return $cons;
}

Edit: just read @Eclecticist comment I missed the +1, but this shows as invalid if I try in Excel can you give some more info on what that does?