我正在使用一种方法来计算一些分数。这是以下方法:
public function getIntScore($name, $int){
    switch ($name) {
        case "bedrooms":
            $maxscore = 15;
            break;
        case "living_size":
            $maxscore = 10;
            break;
        case "property_size":
            $maxscore = 10;
            break;
        case "date_of_construction":
            $maxscore = 3;
            break;
    }
    $houseattribute = (int) $this->$name;
    $difference = abs($houseattribute - $int);
    if ($difference == 0) {
        return $maxscore;
    }
    $score = ($difference / $houseattribute) * $maxscore;
    return round($score);
}
但是,这给了我一个“除以零”错误。我在计算之前检查了变量的值,它们都不是零。
var_dump($difference, $houseattribute, $maxscore) 
输出:
int(2) int(3) int(15)