我得到除以零错误这个函数。我该如何解决？
function percent($liked,$total_voting){
$liked = (int)$liked;
$total_voting = (int)$total_voting;
return ceil(($liked/$total_voting)*100);
这应该适合您：
（它正在测试$total_voting是否为零并在本例中返回 false）
function percent($liked, $total_voting) {
if($total_voting == 0)
return false;
$liked = (int)$liked;
$total_voting = (int)$total_voting;
return ceil(($liked/$total_voting)*100);
}