所以这是我的代码。我遇到的问题是我希望我的PHP代码中的HP编号与我的HP HTML代码相同,而Cylinders也是如此。我已经找到了其他的东西,但是当涉及到那部分我被困住了
<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$cars = array(
array(
"car" => "Ferrari",
"model" => "Testarossa",
"gearbox" => "Manual 5 Shift",
"designer" => "Battista Pininfarina",
"engine" =>
array(
"HP" => 390,
"Cylinders" => 12
),
),
);
?>
<?php foreach($cars as $cars_key => $car_val): ?>
<ul>
<div style="margin-bottom: 10px;">
<li><b>Car:</b> <?php echo $car_val["car"]; ?></li>
<li><b>Model:</b> <?php echo $car_val["model"]; ?></li>
<li><b>Gearbox:</b> <?php echo $car_val["gearbox"]; ?></li>
<li><b>Designer:</b> <?php echo $car_val["designer"]; ?></li>
<li><b>Engine</b></li>
<ul>
<li><b>HP:</b></li>
<li><b>Cylinders:</b></li>
</ul>
</div>
</ul>
<?php endforeach; ?>
答案 0 :(得分:0)
从你的例子来看,在我看来,列表是静态的,由两个元素组成,然后你根本不需要使用forEach
。
<?php foreach($cars as $cars_key => $car_val): ?>
<ul>
<div style="margin-bottom: 10px;">
<li><b>Car:</b> <?php echo $car_val["car"]; ?></li>
<li><b>Model:</b> <?php echo $car_val["model"]; ?></li>
<li><b>Gearbox:</b> <?php echo $car_val["gearbox"]; ?></li>
<li><b>Designer:</b> <?php echo $car_val["designer"]; ?>
</li>
<li><b>Engine</b></li>
<ul>
<li><b>HP:</b><?php echo $car_val["engine"]["HP"]; ?></li>
<li><b>Cylinders:</b><?php echo $car_val["engine"]["Cylinders"]; ?></li>
</ul>
</div>
</ul>
<?php endforeach; ?>
如果您确实需要使用嵌套forEach
,请按以下步骤操作:
foreach($cars as $cars_key => $car_val):
if($cars_key == "engine")
foreach($car_val["engine"] as $engine_key => $engine_val):
echo $engine_key.$engine_val;
endforeach;
endforeach;
答案 1 :(得分:0)
我有一些顾虑:
当您将值硬编码到脚本中时,您将失去关联数组的亮度/效用,否则您只能从阵列中调用它。
我不喜欢中间列表<div>
的外观。我无法想出用它打破你的无序列表流程的任何好理由。
我也不喜欢浮动子列表。它在逻辑上属于Engine
,良好的标记将指示子列表存在于其父级内。
以下是我建议考虑上述观点......
*一些注释:
ucfirst()
可让您避免对密钥进行硬编码。代码:(Demo)
$cars = array(
array(
"car" => "Ferrari",
"model" => "Testarossa",
"gearbox" => "Manual 5 Shift",
"designer" => "Battista Pininfarina",
"engine" => array(
"HP" => 390,
"Cylinders" => 12
)
)
);
foreach($cars as $details){
echo "<ul style=\"margin-bottom:10px;\">";
foreach($details as $key=>$item){
echo "<li><b>",ucfirst($key),":</b>";
if(!is_array($item)){
echo " $item</li>";
}else{
echo "<ul>";
foreach($item as $subkey=>$subval){
echo "<li><b>$subkey:</b> $subval</li>";
}
echo "</ul>";
echo "</li>";
}
}
echo "</ul>";
}
源代码输出:
<ul style="margin-bottom:10px;">
<li><b>Car:</b> Ferrari</li>
<li><b>Model:</b> Testarossa</li>
<li><b>Gearbox:</b> Manual 5 Shift</li>
<li><b>Designer:</b> Battista Pininfarina</li>
<li><b>Engine:</b>
<ul>
<li><b>HP:</b> 390</li>
<li><b>Cylinders:</b> 12</li>
</ul>
</li>
</ul>
渲染输出:(运行我的代码片段@ phptester.net查看)