如何在進行頁面查找時保留表單數據

Question

我正在嘗試執行表查找。我填寫字段，然後單擊組合框來查找。當我返回頁面時，姓氏字段變爲空白。當我返回頁面時，我需要一種保持字段數據的方式。

<?php /*?> 
<?php if(isset($_POST['First'])) { echo htmlentities ($_POST['First']); }?> 
<?php */?> 

<tr valign="baseline"> 
    <td nowrap="nowrap" align="right">Last Name:</td> 
    <td><input type="text" name="Last_Name" id="Last_Name" autofocus value="" placeholder="last name" size="32" /></td> 
</tr> 
<tr valign="baseline"> 
    <td nowrap="nowrap" align="right">City:</td> 
    <td> 
     <select name="LookupCity" id="LookupCity"> 
      <option value="" 
       <?php if (!(strcmp("", $_GET['City']))) {echo "selected=\"selected\"";} ?>> 
       Select from menu 
      </option> 
      <?php do { ?> 
      <option value="<?php echo $row_fmCity['City']?>"<?php if (!(strcmp($row_fmCity['City'], $_GET['City']))) {echo "selected=\"selected\"";} ?>><?php echo $row_fmCity['City']?> 
      </option> 
      <?php 
       } while ($row_fmCity = mysql_fetch_assoc($fmCity)); 
       $rows = mysql_num_rows($fmCity); 
       if($rows > 0) { 
        mysql_data_seek($fmCity, 0); 
        $row_fmCity = mysql_fetch_assoc($fmCity); 
       } 
      ?> 
     </select> 
     <a href="ZipLookup.php?Last Name=<?php echo $Last_Name ?>">select</a> 
    </td> 

請舉個例子。

Answer 1

只需設置控件的「值」屬性即可。