Division by zero error in votes

Question

I get division by zero error this functions. How do I fix it?

function percent($liked,$total_voting){
$liked = (int)$liked;
$total_voting = (int)$total_voting;
return ceil(($liked/$total_voting)*100);

Just check if the $total_voting is zero before the calculations. — Sampath Liyanage, Dec 22 '14 at 17:28
In PHP division by zero is a reported as an error but the program does not halt. What do you mean by fixing then? — hakre, Dec 22 '14 at 17:28

score 1 · Accepted Answer · answered Dec 22 '14 at 17:28

This should work for you:

(It's testing if $total_voting is zero and returns in this case false)

function percent($liked, $total_voting) {

    if($total_voting == 0)
        return false;

    $liked = (int)$liked;
    $total_voting = (int)$total_voting;

    return ceil(($liked/$total_voting)*100);
}

Division by zero error in votes

1 Answers1