为什么limit查询报错语法错误？
//此行报错：syntax error, unexpected '",3"' 语法错误。
$sql = "SELECT * FROM message limit".($page-1)*3.",3";
//然后加两个变量，再写成$sql = "SELECT * FROM message limit $page_from,$page_size";就没问题了
$res = $conn->query($sql);
while($abc = $res->fetch_assoc()){
$rows[] = $abc;
}<table border="1" style="text-align:center; width:200px;"> <tr> <th>内容</th> </tr> <?php foreach ($rows as $abc): ?> <tr> <td><?php echo $abc['mes']; ?></td> </tr> <?php endforeach ?> </table>
