PHP 二维数组的遍历,数据的输出

<?php

$arr = [ //设置一个二维数组

['id'=>1,'title'=>'产品1','url'=>'./img/images/l3_05.jpg'],

['id'=>2,'title'=>'产品2','url'=>'./img/images/img-wrap2_03.jpg'],

['id'=>3,'title'=>'产品3','url'=>'./img/images/img-wrap3_03.jpg'],

['id'=>4,'title'=>'产品4','url'=>'./img/images/img-wrap4_03.jpg'],

['id'=>5,'title'=>'产品5','url'=>'./img/images/img-wrap5_03.jpg'],

['id'=>6,'title'=>'产品6','url'=>'./img/images/img-wrap6_03.jpg']

]

?>

<?php

foreach($arr as $aa){ //遍历二维数组 $aa是随便定义的

?>

<li>

<a href="ylcp.php?id']?>"> //这个a标签是跳转ylcp.php?id'] 给地址栏添加这个后面的页面就可以根据这个来显示相应的内容

<img src="<?php echo $aa['url']?>" alt="">

<span><?php echo $aa['title']?></span>

</a>

</li>

<?php

}

?>

--------------------------------------------------------------跳转的页面----------------------------------

<?php

if(isset($_GET['id'])){ //判断有没有这个值 如果有就把他赋给了这个$id

$id = $_GET['id'];

}else{

header(("location:/"));//如果没有就跳到相应的页面 /是根目录的意思

}

// $arr =[];

switch($id){ //判断上一个页面传过来的值是多少然后输出相应的数组

case 1:

$arr =['id'=>1,'title'=>'产品1','url'=>'./img/images/l3_05.jpg'];

break;

case 2:

$arr =['id'=>2,'title'=>'产品2','url'=>'./img/images/img-wrap2_03.jpg'];

break;

case 3:

$arr =['id'=>2,'title'=>'产品3','url'=>'./img/images/img-wrap3_03.jpg'];

break;

case 4:

$arr =['id'=>1,'title'=>'产品4','url'=>'./img/images/img-wrap4_03.jpg'];

break;

case 5:

$arr =['id'=>1,'title'=>'产品5','url'=>'./img/images/img-wrap5_03.jpg'];

break;

case 6:

$arr =['id'=>1,'title'=>'产品6','url'=>'./img/images/img-wrap6_03.jpg'];

break;

}

?>

<div class="fl hs">

<img src="<?php echo $arr['url']?>" alt=""> //这个是接收的数组里面的图片地址

</div>

<div class="fl sjhs">

<h2><?php echo $arr['title']?></h2> //接收的数组里面的名称

</div>