首先我們需要了解下查詢MySQL數據庫/表相關信息的SQL語句：

復制代碼 代碼如下:

SHOW DATABASES                                //列出 MySQL Server 數據庫。
SHOW TABLES [FROM db_name]                    //列出數據庫數據表。
SHOW CREATE TABLES tbl_name                    //導出數據表結構。
SHOW TABLE STATUS [FROM db_name]              //列出數據表及表狀態信息。
SHOW COLUMNS FROM tbl_name [FROM db_name]     //列出資料表字段
SHOW FIELDS FROM tbl_name [FROM db_name]，DESCRIBE tbl_name [col_name]。
SHOW FULL COLUMNS FROM tbl_name [FROM db_name]//列出字段及詳情
SHOW FULL FIELDS FROM tbl_name [FROM db_name] //列出字段完整屬性
SHOW INDEX FROM tbl_name [FROM db_name]       //列出表索引。
SHOW STATUS                                  //列出 DB Server 狀態。
SHOW VARIABLES                               //列出 MySQL 系統環境變量。
SHOW PROCESSLIST                             //列出執行命令。
SHOW GRANTS FOR user                         //列出某用戶權限

復制代碼 代碼如下:

$rescolumns = mysql_query("SHOW FULL COLUMNS FROM ".TB_NAME."") ;
while($row = mysql_fetch_array($rescolumns)){
//  echo '字段名稱：'.$row['Field'].'-數據類型：'.$row['Type'].'-注釋：'.$row['Comment'];
//  echo '<br/><br/>';
  print_r($row);
}

打印結果：

復制代碼 代碼如下:

Array ( [0] => id [Field] => id [1] => char(2) [Type] => char(2) [2] => utf8_general_ci [Collation] => utf8_general_ci [3] => NO [Null] => NO [4] => PRI [Key] => PRI [5] => [Default] => [6] => [Extra] => [7] => select,insert,update,references [Privileges] => select,insert,update,references [8] => [Comment] => )

Array ( [0] => title [Field] => title [1] => char(50) [Type] => char(50) [2] => utf8_general_ci [Collation] => utf8_general_ci [3] => YES [Null] => YES [4] => [Key] => [5] => [Default] => [6] => [Extra] => [7] => select,insert,update,references [Privileges] => select,insert,update,references [8] => 建議存儲：標題、姓名等信息 [Comment] => 建議存儲：標題、姓名等信息 )

Array ( [0] => des [Field] => des [1] => varchar(255) [Type] => varchar(255) [2] => utf8_general_ci [Collation] => utf8_general_ci [3] => YES [Null] => YES [4] => [Key] => [5] => [Default] => [6] => [Extra] => [7] => select,insert,update,references [Privileges] => select,insert,update,references [8] => [Comment] => )

…………