Division by zero error in votes

This question already has an answer here:

How to suppress the “Division by zero” error and set the result to null for the whole application? 4 answers

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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);
}

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