php如何访问mysql

Question

<? $conn=mysql_connect("localhost","admin","admin");
   mysql_select_db("test");
   $sql="select * from weather";
   $result=mysql_query($sql);
?><form name="form1" method="post" action=""> 
 <table width="200" border="1">
    <tr>
      <td>城市</td>
      <td>最高温度</td>
      <td>最低温度</td>
    </tr>
<?
while($arr=mysql_fetch_array($result))
{
?>
    <tr>
      <td><?echo "$arr[city]";?></td>
      <td><?echo "$arr[high_t]";?></td>
      <td><?echo "$arr[low_t]";?></td>
    </tr>
<?}?>
  </table>
</form>

Answer 1

谢谢了 ！！
我明白了 ！