将“全选”添加到过滤器

Question

我已经成功地为日历设置了一个过滤器，以显示不同用户的即将到来的工作，您可以在其中选择要查看其工作的用户。 现在，我想向过滤器添加“全选”，以便它显示每个人的工作，而不仅仅是指定用户。
我已经进行了研究，发现了一个类似的问题，但是它不适用于我的情况（该问题使用了输入表单字段，而我的数据库使用了数据库来创建过滤器，因此响应对我不起作用）我将我的问题标记为重复，我不认为是重复。 这是页面代码：

if (isset($_REQUEST['id'])) {
     $workDetails = GetWork($_REQUEST['id']);
     $accountName = $_REQUEST['accountname'];
     $accountId = $_REQUEST['accountid'];
}
if(isset($_REQUEST['inassigneduser'])){
     $inassigneduser = $_REQUEST['inassigneduser'];
}else{
     $inassigneduser = $_SESSION['userid'];
}

echo "<h2 class='title'>Planned Works</h2><hr class='red'/>";
?>
<table style="margin-bottom:10px;">
<tr>
<td style='width:120px;'><span class='title'>Assigned To:&nbsp;&nbsp;</span> 
</td>
<td id="plannedworkusers" style='width:170px;text-align:left;'><?php echo 
GetUserCombo($inassigneduser, true, "inassigneduser","All");?></td><td 
style='text-align:left;'></td>
<td style='text-align:left;'><a href='#' class='button' 
name='filterassigneduser' >Filter</a></td>
</tr>
</table>
<?php
echo "<div id='calendar' style='float:left; width:100%; margin-left:10px;'> 
</div>";
$events = '';
$events = GetHolidaysForCal($inassigneduser);

和我的functions.php文件：

function GetHolidaysForCal($inassigneduser)
{
     mysql_connect(DB_HOST, DB_USER, DB_PASS);
     mysql_select_db(DB_NAME) or die("Unable to select database");
     $eventArray = array();

     $sql = "SELECT w.*, c.name AS contactname, a.name AS accountname
        FROM works w, contact c, account a
        WHERE w.id = c.worksid
        AND w.accountid = a.id
        AND c.contacttype = 0
  AND w.assignedtouser = $inassigneduser
        AND (w.infracompletiondate != '0000-00-00'
                OR w.meteringcompletiondate != '0000-00-00'
                OR w.meterremovaldate != '0000-00-00'
                OR w.servicedisconnectiondate != '0000-00-00'
                OR w.gt1date != '0000-00-00'
                OR w.sitesurveydate != '0000-00-00'
                OR w.infrastructurestartdate != '0000-00-00'
      OR w.liveanddeadcheckdate != '0000-00-00')

        ORDER BY w.infracompletiondate ASC, w.meteringcompletiondate ASC ";
     $result = mysql_query($sql);
     $eventstr = "";
     $color = 'black';

希望能提供足够的信息，对于如何添加“全选”选项的任何帮助将不胜感激！

Answer 1

经过大量的试验和错误，我终于设法自己解决了。 以下是我编辑的functions.php文件的代码。

$sql = "SELECT w.*, c.name AS contactname, a.name AS accountname
        FROM works w, contact c, account a
        WHERE w.id = c.worksid
        AND w.accountid = a.id
        AND c.contacttype = 0";

 //Added code
  if ($inassigneduser != "all") {
    $sql .= " AND w.assignedtouser = " . $inassigneduser;
  }

        $sql .= " AND (w.infracompletiondate != '0000-00-00'
                OR w.meteringcompletiondate != '0000-00-00'
                OR w.meterremovaldate != '0000-00-00'
                OR w.servicedisconnectiondate != '0000-00-00'
                OR w.gt1date != '0000-00-00'
                OR w.sitesurveydate != '0000-00-00'
                OR w.infrastructurestartdate != '0000-00-00'
      OR w.liveanddeadcheckdate != '0000-00-00')

        ORDER BY w.infracompletiondate ASC, w.meteringcompletiondate ASC ";