2010-03-05 400 views
1

我在與網頁難度不會立即顯示更新的數據 這是我目前的一個:PHP腳本,重新加載頁面

<?php 
$con = mysql_connect("localhost","root",""); 
if (!$con) 
    { 
    die('Could not connect: ' . mysql_error()); 
    } 

mysql_select_db("hospital", $con); 

$result = mysql_query("SELECT * FROM t2"); 

echo"<br>"; 
echo"<big>All In Patients</big>"; 
echo "<table border='1'> 
<tr> 
<th>Pnum</th> 
<th>HospNum</th> 
<th>RoomNum</th> 
<th>LastName</th> 
<th>FirstName</th> 
<th>MidName</th> 
<th>Address</th> 
<th>TelNum</th> 
<th>Stat</th> 
<th>Nurse</th> 
</tr>"; 

while($row = mysql_fetch_array($result)) 
    { 
    echo "<tr>"; 
    echo "<td>" . $row['PNUM'] . "</td>"; 
    echo "<td>" . $row['HOSPNUM'] . "</td>"; 
    echo "<td>" . $row['ROOMNUM'] . "</td>"; 
    echo "<td>" . $row['LASTNAME'] . "</td>"; 
     echo "<td>" . $row['FIRSTNAME'] . "</td>"; 
     echo "<td>" . $row['MIDNAME'] . "</td>"; 
      echo "<td>" . $row['ADDRESS'] . "</td>"; 
      echo "<td>" . $row['TELNUM'] . "</td>"; 
      echo "<td>" . $row['STAT'] . "</td>"; 
      echo "<td>" . $row['NURSE'] . "</td>"; 

    echo "</tr>"; 
    } 
echo "</table>"; 

mysql_close($con); 
?> 

<form> 
<input type="button" class='type_button' value="Print" onClick="window.print();" /> 
</form> 
</body> 
</html> 

你知道什麼解決辦法,可以使上述更新的代碼?因爲當我更新數據,然後加載上面的代碼。它只會顯示尚未更新的先前數據。您必須右鍵單擊並刷新頁面以查看效果。

+0

這是緩存問題嗎? – 2010-03-05 13:03:30

+0

你應該在你的代碼上面執行UPDATE SELECT,那麼它應該工作,如果不是那麼問題是在別的地方 – 2010-03-05 13:04:18

+0

不是緩存問題,我試過了下面的代碼,但不會工作 – user225269 2010-03-05 23:20:26

回答

1

您可以嘗試設置緩存標頭。

<?php 
header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past 
?> 

或者您正在從MySQL中獲取緩存的數據?

SELECT SQL_NO_CACHE * FROM t2