以下表单在逻辑上每次在浏览器中启动页面时都会显示成功消息,但表单只有在成功提交后才会显示成功消息。
$editFormAction = $_SERVER['PHP_SELF'];
if (isset($_SERVER['QUERY_STRING'])) {
$editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']);
}
$message = "Record has been updated successfully.";
if ((isset($_POST["MM_update"])) && ($_POST["MM_update"] == "form1")) {
$updateSQL = sprintf("UPDATE table SET name=%s, email=%s,
GetSQLValueString($_POST['name'], "text"),
GetSQLValueString($_POST['email'], "text"),
mysql_select_db($database_test, $test);
$Result1 = mysql_query($updateSQL, $test) or die(mysql_error());
$updateGoTo = "test.php";
if (isset($_SERVER['QUERY_STRING'])) {
$updateGoTo .= (strpos($updateGoTo, '?')) ? "&" : "?";
$updateGoTo .= $_SERVER['QUERY_STRING'];
}
header(sprintf("Location: %s", $updateGoTo));
}
表单的html部分如下:
<form action="<?php echo $editFormAction; ?>" method="post" name="form1" id="form1">
<table align="center" class="test_table">
<tr valign="baseline">
<td align="right" nowrap="nowrap" class="table-title">Name:</td>
<td class="table-content"><input type="text" name="name" value="<?php echo htmlentities($row_user['name'], ENT_COMPAT, 'utf-8'); ?>" size="32" /></td>
</tr>
<tr valign="baseline">
<td align="right" nowrap="nowrap" class="table-title">E-mail:</td>
<td class="table-content"><input type="text" name="email" value="<?php echo htmlentities($row_user['email'], ENT_COMPAT, 'utf-8'); ?>" size="32" /></td>
</tr>
</table>
<input type="hidden" name="MM_update" value="form1" />
<input type="hidden" name="id" value="<?php echo $row_user['id']; ?>" />
<input class="submit" name="UpdateRecord" type="submit" id="UpdateRecord" value="Update Record" /></form>
这是成功消息在页面上的 div 中显示的方式:
<p> <?php
if (!empty($message)) {
echo "<div class=\"successmessage\">" . $message . "</div>";
}
?></p>
我在这里做错了什么?