<?php
        $table = 'orders';
        $query = "SHOW COLUMNS FROM $table";
        if($output = mysql_query($query)):
            $columns = array();
            while($result = mysql_fetch_assoc($output)):
                $columns[] = $result['Field'];
            endwhile;
        endif;
        echo '<pre>';
        print_r($columns);
        echo '</pre>';
?>

类似于@suganya发布的答案，这并没有直接回答问题，但对于单个表来说是一个更快的选择:

DESCRIBE column_name;

select column_name from information_schema.columns
where table_schema = 'your_db'
order by table_name,ordinal_position

您可以使用此查询查询特定数据库中每个表的所有列

select
    TABLE_SCHEMA,
    TABLE_NAME,
    COLUMN_NAME
from
    information_schema.columns
where
    table_schema = 'database_name'
order by 
    table_name,
    ordinal_position;

列出MySQL表中的所有字段:

select * 
  from information_schema.columns 
 where table_schema = 'your_DB_name' 
   and table_name = 'Your_tablename'

最好使用以下查询来获取所有列名 很容易

显示tablename中的列