取mysql字段注释有关问题
取mysql字段注释问题
include("conn.php");
$query="select * from menu";
$result = mysql_query($query);
for($i=0;$i
$temp=mysql_field_name($result,$i);
echo $temp.":";
$query_1="select column_comment from INFORMATION_SCHEMA.Columns where table_name='admin' and table_schema='phpdata' and column_name like '$temp'";
$result_1=mysql_query($query_1);
$row_1=mysql_fetch_row($result_1);
echo $row_1[0]."
";
}
?>
这段代码在本地可以运行
但在服务器上只能取出字段名,不能取出注释
表名和库名没有写错。
请问是什么原因呢,会不会是要开通什么权限呢?
id:
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /www/users/swd888.com/1.php on line 11
------解决方案--------------------
你这句就运行失败了
$result_1=mysql_query($query_1);
把这个$query_1语句输出后,复制到数据库里运行一下
或是query后加个or die($mysql_error());看进一步的错误提示
------解决方案--------------------
密码错了?为啥被拒绝了,就没连上
忘了问,你数据库连接了没,怎么没有mysql_connect
------解决方案--------------------
没有权限访问 INFORMATION_SCHEMA 数据库吧。换用root用户试试。
------解决方案--------------------
检查一下你的conn.php函数,加上
- PHP code
if (!$con) { die('Could not connect: ' . mysql_error()); } <br><font color="#e78608">------解决方案--------------------</font><br>show full fields from table //这样试试 <br><font color="#e78608">------解决方案--------------------</font><br>$query_1 = "show full columns from phpdata from admin like '$temp'";<br>$result_1=mysql_query($query_1);<br>$row_1=mysql_fetch_row($result_1);<br>echo $row_1['Comment']."<br>";<br><br>试试看 <div class="clear"> </div>

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