顯示基於數組的複選框列表

Question

我有一個複選框列表顯示在下面。這顯示所有接觸器，並允許通過複選框選擇它們。

<?php 
$query = "SELECT * FROM form_4 GROUP BY contractors ASC"; 
$result = mysql_query($query); 
?> 
<li><select multiple="multiple" size="10" name="contractors[]"> 
     <option value="None Yet" selected="selected">None Yet 
</option> 
<?php 
while ($line = mysql_fetch_array($result, MYSQL_ASSOC)) { 
?> 
<option value="<?php echo $line['contractors'];?>"> <?php echo $line['contractors'];?> </option> 
<?php 
} 
?> 
      </select></li> 

我保存，我想生成以上，但與數組中的項目已經在下面選中/選擇列表中的其他地方的數組。

<?php 
$options = unserialize('contractors'); 
$result = mysql_query("SELECT * FROM form_2 WHERE jobname = 'testjob' GROUP BY jobname ORDER BY biddate ASC LIMIT 0, 1"); 

while($row = mysql_fetch_array($result)) 
    { 
    $contractors = unserialize($row['contractors']); 
    foreach ($contractors as $contractor) 
    echo "" . htmlspecialchars ($contractor).' - '; 
?> 

任何幫助將不勝感激。

Answer 1

試試這個：

<option value="<?php echo $line['contractors'];?>" <?php if(in_array($line['contractors'],$contractors)){?>checked="checked" <?php }?>> <?php echo $line['contractors'];?> </option>