致命错误:不支持的操作数类型 [英] Fatal error: Unsupported operand types
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问题描述
我一直收到以下错误,我想知道如何解决它.
I Keep getting the following error and I was wondering on how to fix it.
Fatal error: Unsupported operand types on line 97
它围绕下面列出的这段代码.如果需要,我可以列出完整的代码.
Its around this area of code listed below. I can list the full code if needed.
PHP代码
$total_rating_points = mysqli_fetch_array($result);
if (!empty($total_rating_points) && !empty($total_ratings)){
$avg = (round($total_rating_points / $total_ratings,1));
$votes = $total_ratings;
echo $avg . "/10 (" . $votes . " votes cast)";
} else {
echo '(no votes cast)';
}
这是第97行
$avg = (round($total_rating_points / $total_ratings,1));
这是完整的代码.
function getRatingText(){
$dbc = mysqli_connect ("localhost", "root", "", "sitename");
$page = '3';
$sql1 = "SELECT COUNT(*)
FROM articles_grades
WHERE users_articles_id = '$page'";
$result = mysqli_query($dbc,$sql1);
if (!mysqli_query($dbc, $sql1)) {
print mysqli_error($dbc);
return;
}
$total_ratings = mysqli_fetch_array($result);
$sql2 = "SELECT COUNT(*)
FROM grades
JOIN articles_grades ON grades.id = articles_grades.grade_id
WHERE articles_grades.users_articles_id = '$page'";
$result = mysqli_query($dbc,$sql2);
if (!mysqli_query($dbc, $sql2)) {
print mysqli_error($dbc);
return;
}
$total_rating_points = mysqli_fetch_array($result);
if (!empty($total_rating_points) && !empty($total_ratings)){
$avg = (round($total_rating_points / $total_ratings,1));
$votes = $total_ratings;
echo $avg . "/10 (" . $votes . " votes cast)";
} else {
echo '(no votes cast)';
}
}
推荐答案
$total_rating_points
是一个数组.您不能将其除以数字.
$total_rating_points
is an array. you cannot divide it by a number.
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