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老师批语：
<?php
$xq=[
['id'=>01,'con'=>'我是一个苹果，我很甜'],
['id'=>02,'con'=>'我是一个香蕉，我很香'],
['id'=>03,'con'=>'我是一个橘子，我很算'],
];
$id = intval($_GET['id']);
foreach ($xq as $qq) {
if($id===$qq['id']){
echo $qq['con'];
}
}点击 "运行实例" 按钮查看在线实例
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>列表页</title>
</head>
<body>
<?php
$list=[
['id'=>01,'name'=>'苹果','dj'=>2.1,],
['id'=>02,'name'=>'香蕉','dj'=>3.3,],
['id'=>03,'name'=>'橘子','dj'=>5.2,],
];
?>
<div style="width: 500px;">
<table style="color: blue;width:500px;border: 1px solid lightslategray;text-align:center;height: 100px;">
<caption style="font-size: 30px;color:red;text-align: center;">商品名单</caption>
<thead>
<tr>
<th>序号</th>
<th>名称</th>
<th>单价</th>
<th>详情</th>
</tr>
</thead>
<tbody>
<?php foreach ($list as $lis):?>
<tr style='border: 1px solid red;'>
<?php foreach ($lis as $td): ?>
<?php echo "<td style='border: 1px solid red;'>$td</td>"; ?>
<?php endforeach;?>
<!-- 重点： 三行循环完了在最后追加一行详情链接-->
<?php echo "<td style='border: 1px solid red;'><a href='xq.php?id={$lis['id']}'>详情</a></td>"; ?>
</tr>
<?php endforeach;?>
</tbody>
</table>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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