小编tEc*_*nUt的帖子

我一直收到以下错误,我想知道如何修复？

这是我第二次遇到这个错误,我第一次修复它,但由于某种原因我第二次无法修复它.

Fatal error: Unsupported operand types on line 103

这是第103行.

$avg = (round($total_rating_points / $total_ratings,1));

以下是完整的代码.

function getRatingText(){
    $dbc = mysqli_connect ("localhost", "root", "", "sitename");

    $page = '3';

    $sql1 = "SELECT COUNT(users_articles_id) 
             FROM articles_grades 
             WHERE users_articles_id = '$page'";

    $result = mysqli_query($dbc,$sql1);

    if (!mysqli_query($dbc, $sql1)) {
            print mysqli_error($dbc);
            return;
    }

    $total_ratings = mysqli_fetch_array($result);

    $sql2 = "SELECT grade_points 
             FROM grades 
             JOIN articles_grades ON grades.id = articles_grades.grade_id
             WHERE articles_grades.users_articles_id = '$page'";

    $result = mysqli_query($dbc, $sql2);

    if (!mysqli_query($dbc, $sql2)) {
            print mysqli_error($dbc);
            return; …