首先，我尝试了几乎所有类似问题的解决方案，但我无法得到结果。我正在尝试更换设计以显示一些数据。我已将产品列表存储在$prods = array()因此，当我尝试让这些产品改变它们在网页上的显示方式时，我做了如下操作：$aux = count($prods);foreach($prods as $key => $value):?><?php if($aux%2 == 0): ?><html> <div class="container"> <div class="row justify-content-around my-3"> <figure class="col-6 figure my-3 row justify-content-center"> <img style="height: 20vw" src="imagenes/d3.jpeg" class="figure-img img-fluid rounded" alt="..."> </figure> <div class="col-6 row justify-content-around"> <div class="col row align-items-center"> <div class="col display-3"><?php $value ?></div> <div class="col-12 display-5">Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam saepe ipsum quod nesciunt labore magni a perspiciatis sunt officia facere, reprehenderit praesentium explicabo ipsa eligendi! Cumque nulla reiciendis perferendis sequi.</div> <p class="col-12 lead">Precio: Lorem, ipsum dolor.</p> </div> </div> </div> </div></html><?php $aux = $aux-1; ?><?php else: ?><html> <div class="container"> <div class="row justify-content-around my-3"> <div class="col-6 row justify-content-around"> <div class="col row align-items-center"> <div class="col-12 display-3"><?php $value ?></div> <div class="col-12 display-5">Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam saepe ipsum quod nesciunt labore magni a perspiciatis sunt officia facere, reprehenderit praesentium explicabo ipsa eligendi! Cumque nulla reiciendis perferendis sequi.</div> <p class="col-12 lead">Precio: Lorem, ipsum dolor.</p> </div> </div> </div> </div></html><?php $aux = $aux-1; ?><?php endforeach;?>当我运行它时只得到空白结果。没有html代码。我是 PHP/HTML/MongoDB 的新手，所以我正在努力学习！感谢您。
1 回答
冉冉说
TA贡献1877条经验 获得超1个赞
通常如果你的$prod不为空，这应该有效：
<?php
$aux = count($prods);
?>
<html>
<body>
<?php
foreach($prods as $key => $value){
if($aux%2 == 0){ ?>
<div class="container">
<div class="row justify-content-around my-3">
<figure class="col-6 figure my-3 row justify-content-center">
<img style="height: 20vw" src="imagenes/d3.jpeg" class="figure-img img-fluid rounded" alt="...">
</figure>
<div class="col-6 row justify-content-around">
<div class="col row align-items-center">
<div class="col display-3"><?php $value ?></div>
<div class="col-12 display-5">Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam saepe ipsum quod nesciunt labore magni a perspiciatis sunt officia facere, reprehenderit praesentium explicabo ipsa eligendi! Cumque nulla reiciendis perferendis sequi.</div>
<p class="col-12 lead">Precio: Lorem, ipsum dolor.</p>
</div>
</div>
</div>
</div>
<?php $aux = $aux-1; } else {?>
<div class="container">
<div class="row justify-content-around my-3">
<div class="col-6 row justify-content-around">
<div class="col row align-items-center">
<div class="col-12 display-3"><?php $value ?></div>
<div class="col-12 display-5">Lorem ipsum dolor sit amet consectetur adipisicing elit. Aperiam saepe ipsum quod nesciunt labore magni a perspiciatis sunt officia facere, reprehenderit praesentium explicabo ipsa eligendi! Cumque nulla reiciendis perferendis sequi.</div>
<p class="col-12 lead">Precio: Lorem, ipsum dolor.</p>
</div>
</div>
<figure class="col-6 figure my-3 row justify-content-center">
<img style="height: 20vw" src="imagenes/d.jpeg" class="figure-img img-fluid rounded" alt="...">
</figure>
</div>
</div>
<?php $aux = $aux-1; ?>
<?php }};?>
</body>
</html>
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