Question

这应该很容易，但出于某种原因，它正在逃避我。我有一个非常简单的查询和循环。我没有添加实际查询...但是$ results中的对象数组。 $ totalHits添加工作正常。总计$ iratings的数量也很好。我还要做的是获取$ iratings中的记录数并打印出平均值......我似乎无法让计数部分正常工作。如何修改它以获取$ iratings的数量，然后将TotalRating除以数组中“$ iratings”的数量？如果这有意义吗？

$result = $db->loadObjectList();

// Tally Up the Stats

    $totalHits = 0;
    $totalRating = 0;

    foreach ($result as $item) {
    $ihits = $item->ihits;
    $totalHits = $totalHits + $ihits;
    $iratings = $item->iratings;
    $totalRating = $totalRating + $iratings;
    }

echo ('<br/>Total Hits: '.$totalHits);
 echo ('<br/>Total Rating: '.$totalRating);

Answer 1

$result = $db->loadObjectList();

// Tally Up the Stats
$totalHits = 0;
$totalRating = 0;
$numIterations = 0;

foreach ($result as $item) {
    $ihits = $item->ihits;
    $totalHits = $totalHits + $ihits;
    $iratings = $item->iratings;
    $totalRating = $totalRating + $iratings;
    $numIterations++;
}

echo ('<br/>Total Hits: '.$totalHits);
echo ('<br/>Total Rating: '.$totalRating);
echo ('<br />Average Rating: ' . ($totalRating/$numIterations));

得到数组，然后在每个循环中取平均值

1 个答案: