如何在 foreach 循环中添加 html?

基本上我需要为每个三个div做什么，并从数据库中显示5个服务。

我不知道该怎么做。有人可以向我解释一下吗？我尝试了一切，但我不知道该怎么做。第二个div 不应在行中。输出就像我在下面放置的图像链接一样。

提前谢谢。

<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="row">
<div class="col-lg-4">
<div class="row">
<div class="service-img service" style="background-image: url(images/image1.jpg); height: 300px; background-color: red;">
<figcaption>
<h3>Service Title Goes Here 1</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="row">
<div class="service-img service" style="background-image: url(images/image2.jpg); height: 300px; background-color: green;">
<figcaption>
<h3>Service Title Goes Here 2</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
</div>
<div class="col-lg-4 service-middle">
<div class="service-img service" style="background-image: url(images/image3.jpg); height: 600px; background-color: blue;">
<figcaption>
<h3>Service Title Goes Here 3</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="col-lg-4">
<div class="row">
<div class="service-img service" style="background-image: url(images/image4.jpg); height: 300px; background-color: yellow;">
<figcaption>
<h3>Service Title Goes Here 4</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="row">
<div class="service-img service" style="background-image: url(images/image5.jpg); height: 300px; background-color: pink;">
<figcaption>
<h3>Service Title Goes Here 5</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

这应该看起来像这样

嗯，我还不能测试这个，但试着把这个 css;它的作用是将.service-img.service的高度设置为50%。然后在选择器.service-middle>.service-img.service上，我们增加了100%的高度。

请让我知道这是否有效以及它在屏幕上的外观。谢谢。

PS：不要运行代码段，只使用 css，不包括引导程序。

.service-img.service {
height: 50%;
}
.height100{
height:100px;
}
.service-middle>.service-img.service{
height:100% !important;
}

<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="row height100">
<div class="col-lg-4">
<div class="row">
<div class="service-img service" style="background-image: url(images/image1.jpg); height: 300px; background-color: red;">
<figcaption>
<h3>Service Title Goes Here 1</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="row">
<div class="service-img service" style="background-image: url(images/image2.jpg); height: 300px; background-color: green;">
<figcaption>
<h3>Service Title Goes Here 2</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
</div>
<div class="col-lg-4 service-middle">
<div class="service-img service" style="background-image: url(images/image3.jpg); height: 618px; background-color: blue;">
<figcaption>
<h3>Service Title Goes Here 3</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="col-lg-4">
<div class="row">
<div class="service-img service" style="background-image: url(images/image4.jpg); height: 300px; background-color: yellow;">
<figcaption>
<h3>Service Title Goes Here 4</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<div class="row">
<div class="service-img service" style="background-image: url(images/image5.jpg); height: 300px; background-color: pink;">
<figcaption>
<h3>Service Title Goes Here 5</h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>

不太确定div.row 是否应该放在第二行，但我希望你明白这个想法。我只是使用三元运算符来添加服务中产阶级：<?php echo $num == 2? 'sevice-middle' : '' ?>

<?php if ($num == 1): ?>
<div class="col-lg-4" <?php echo 'num= '.$num; ?> >
<?php endif ?>
<?php foreach ($services as $service): $num++; ?> 
<div class="row">
<div class="sevice-img service <?php echo $num == 2? 'sevice-middle' : '' ?> " style="background-image: url(<?php echo 'images/'.$service['image']); ?>); height: 300px;">
<figcaption>
<h3><?php echo $service['title']; ?></h3>
</figcaption>
<a href="/detail.php"></a>
</div>
</div>
<?php endforeach ?>
<?php if ($num > 0): ?>
</div>
<?php endif ?>

您面临的主要错误是：

<?php if ($num == 1): ?>

应该是

<?php if ($num === 1): ?>

欲了解更多信息：

真/假在 PHP 中是如何工作的？

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