$sql = "show create table category";
$res = mysql_query($sql) or die(mysql_error());
while($obj=mysql_fetch_object($res))
...{
　　print_r($obj);
　　echo "<hr>";
}
　　输出

stdClass Object
(
　　[Table] => category
　　[Create Table] => CREATE TABLE `category` (
　`CategoryID` int(10) unsigned NOT NULL default '0',
　`CategoryName` varchar(80) NOT NULL default '',
　`ParentID` int(10) unsigned NOT NULL default '0',
　`Keywords` varchar(255) NOT NULL default '',
　`ProductCount` mediumint(6) unsigned NOT NULL default '0',
　`TradeLeadCount` mediumint(6) NOT NULL default '0',
　`CompanyCount` mediumint(6) NOT NULL default '0',
　`B2soutletcount` mediumint(6) unsigned NOT NULL default '0',
　`CategoryType` tinyint(1) NOT NULL default '0',
　`Section` tinyint(1) unsigned NOT NULL default '0',
　`IsLeaf` tinyint(1) NOT NULL default '1',
　`Link` int(10) unsigned NOT NULL default '0',
　PRIMARY KEY　(`CategoryID`),
　KEY `GroupName` (`CategoryName`),
　KEY `ParentID` (`ParentID`),
　KEY `CategoryType` (`CategoryType`),
　KEY `Section` (`Section`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
)
　　mysql>tee outmsg.log --注把以后在命令行执行的结构都输入到outmsg.log文件中

mysql> ? show
Name: 'SHOW'
Description:
SHOW has many forms that provide information about databases, tables,
columns, or status information about the server. This section describes
those following:
SHOW [FULL] COLUMNS FROM tbl_name [FROM db_name] [LIKE 'pattern']
SHOW CREATE DATABASE db_name
SHOW CREATE FUNCTION funcname
SHOW CREATE PROCEDURE procname
SHOW CREATE TABLE tbl_name
SHOW DATABASES [LIKE 'pattern']
SHOW ENGINE engine_name ...{LOGS | STATUS }
SHOW [STORAGE] ENGINES
SHOW ERRORS [LIMIT [offset,] row_count]
SHOW FUNCTION STATUS [LIKE 'pattern']
SHOW GRANTS FOR user
SHOW INDEX FROM tbl_name [FROM db_name]
SHOW INNODB STATUS
SHOW PROCEDURE STATUS [LIKE 'pattern']
SHOW [BDB] LOGS
SHOW PLUGIN
SHOW PRIVILEGES
SHOW [FULL] PROCESSLIST
SHOW [GLOBAL | SESSION] STATUS [LIKE 'pattern']
SHOW TABLE STATUS [FROM db_name] [LIKE 'pattern']
SHOW [OPEN] TABLES [FROM db_name] [LIKE 'pattern']
SHOW TRIGGERS
SHOW [GLOBAL | SESSION] VARIABLES [LIKE 'pattern']
SHOW WARNINGS [LIMIT [offset,] row_count]
The SHOW statement also has forms that provide information about
replication master and slave servers and are described in
[replication-sql]:
SHOW BINLOG EVENTS
SHOW MASTER LOGS
SHOW MASTER STATUS
SHOW SLAVE HOSTS
SHOW SLAVE STATUS
If the syntax for a given SHOW statement includes a LIKE 'pattern'
part, 'pattern' is a string that can contain the SQL `%' and `_'
wildcard characters. The pattern is useful for restricting statement
output to matching values.
Several SHOW statements also accept a WHERE clause that provides more
flexibility in specifying which rows to display. See [extended-show].