Question

好的，我希望这不是太具体。我有一个数据库驱动的CMS，同事在其中使用了许多类别。以下是它与我们现在拥有的产品相呼应的方式：

$offers = get_offers('category1','none','compare');

  foreach ($offers as $row) {
    $offername = $row['name'];
    $offerlogo = $row['logo'];
    $offera=$row['detailA'];
    $offerb=$row['detailB'];
    $offerc=$row['detailC'];

 echo "you can have $offername, it's logo looks like <img src='$offerlogo'>" it's characteristics are $offera, offerb, offerc, etc";}

这很好用。我的问题是我想从其他类别，类别2获得offera，offerb和offerc。我试过这样：

$offers = get_offers('category1','none','compare');

  foreach ($offers as $row) {

    $offername = $row['name'];
    $offerlogo = $row['logo'];

$offers = get_offers('category2','none','compare');

    $offera=$row['detailA'];
    $offerb=$row['detailB'];
    $offerc=$row['detailC'];

echo "you can have $offername, it's logo looks like <img src='$offerlogo'>" it's characteristics are $offera, offerb, offerc, etc";}

但当然这不起作用。我不希望我的同事必须通过CMS并复制所有信息，有没有办法使这项工作？

Answer 1

假设两次调用get_offers的结果排序匹配，我相信这可能适合您：

$offers['cat1'] = get_offers('category1', 'none', 'compare');
$offers['cat2'] = get_offers('category2', 'none', 'compare');

$numberOfOffers = count($offers['cat1']);
for ($i = 0; $i < $numberOfOffers; $i++)
{
    $offername = $offers['cat1'][$i]['name'];
    $offerlogo = $offers['cat1'][$i]['logo'];

    $offera = $offers['cat2'][$i]['detailA'];
    $offerb = $offers['cat2'][$i]['detailB'];
    $offerc = $offers['cat2'][$i]['detailC'];

    echo "you can have $offername, its logo looks like <img src='$offerlogo'> its characteristics are $offera, $offerb, $offerc, etc\n"; 
}

Answer 2

我同意ngm。如果类别匹配，那么您可以使用以下内容从不同的调用中获取结果：

$offersCat1 = get_offers('category1','none','compare');  
$offersCat2 = get_offers('category2','none','compare');  
foreach ($offers as $key=>$row) {  
    $offera=$offersCat2[$key]['detailA'];  
    $offerb=$offersCat2[$key]['detailB'];  
    $offerc=$offersCat2[$key]['detailC'];  
    echo "you can have {$row['name']}, it's logo looks like <img src='{$row['logo']}'> it's characteristics are $offera, offerb, offerc, etc";  
}

此示例将执行相同的操作，但您将其保留在foreach循环中。通过使用$ key =＆gt; $行，您可以访问数组的键。我也冒昧直接回应你的变量，而不是把它们放在变量中。如果将{}放在数组变量（或类变量）周围，可以在echo，print或＆lt;＆lt;＆lt;中使用它们。这让我的生活更轻松。

示例：echo "This variable {$variable['test']}";

在一个foreach循环中单独调用Db数据

2 个答案: