<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>获取数据表中的数据</title>
</head>
<body>
<?php
$table= 'grades';
$database= 'sel';
$link= @mysqli_connect('localhost','root','',$database) or die('错误：'.mysqli_connect_error());
mysqli_set_charset($link,'utf8');
$rs= mysqli_query($link,'select * from '.$table);
$list= mysqli_fetch_all($rs,MYSQLI_ASSOC);
?>
<table>
<tr>
<?php foreach($list as $key=>$value): ?>
<th><?php echo array_keys($value)[$key] ?></th>
<?php endforeach;?>
</tr>
<?php foreach($list as $rows):?>
<tr>
<?php for($i=0; $i<count($list); $i++):?>
<td><?php echo $rows[array_keys($rows)[$i]]?></td>
<?php endfor;?>
</tr>
<?php endforeach;?>
</table>
</body>
</html>