PHP获取mysql数据表的字段名称和详细信息的方法

show databases                                //列出 mysql server 数据库。
show tables [from db_name]                    //列出数据库数据表。
show create tables tbl_name                    //导出数据表结构。
show table status [from db_name]              //列出数据表及表状态信息。
show columns from tbl_name [from db_name]     //列出资料表字段
show fields from tbl_name [from db_name]，describe tbl_name [col_name]。
show full columns from tbl_name [from db_name]//列出字段及详情
show full fields from tbl_name [from db_name] //列出字段完整属性
show index from tbl_name [from db_name]       //列出表索引。
show status                                  //列出 db server 状态。
show variables                               //列出 mysql 系统环境变量。
show processlist                             //列出执行命令。
show grants for user                         //列出某用户权限

$rescolumns = mysql_query("show full columns from ".tb_name."") ;
while($row = mysql_fetch_array($rescolumns)){
//  echo '字段名称：'.$row['field'].'-数据类型：'.$row['type'].'-注释：'.$row['comment'];
//  echo '<br/><br/>';
  print_r($row);
}

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] => 建议存储：标题、姓名等信息 [comment] => 建议存储：标题、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] => )

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