我想在我的特定项目目录中下载Word文件。我的代码正在运行，并且还下载了Word文件。 Word文件在下载路径中下载。但我希望将该文件下载到我的特定项目目录中。请为我提供解决方案。我的代码将在以下情况下显示：
public function download_preshipment_word()
{
$base_url=$this->config->item('base_url');
$led_id = $this->uri->segment(3);
$Query="where ledger_id=$led_id";
$data["sam_preshipment_detail"]=$this->insert->Select('sam_preshipment',$Query);
$sam_preshipment_info=$data["sam_preshipment_detail"][0];
//print_r($sam_preshipment_info);exit();
header("Content-type: application/vnd.ms-word");
header("Content-Disposition: attachment;Filename=".rand().".doc");
header("Pragma: no-cache");
header("Expires: 0");
$output= '
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=euc-kr">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>
'.$sam_preshipment_info->pre_ship_id.'
</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<link href="https://fonts.googleapis.com/css?family=Raleway:300,400,500,700,900" rel="stylesheet" type="text/css">
<style>
@media print {
* {
color: #000 !important;
text-shadow: none !important;
background: transparent !important;
box-shadow: none !important;
}
.wrapper{
border: 3px solid #333 ! important;
}
table,tr,td,th
{
border: none;
border-collapse: collapse;
padding:5px 10px;
margin-bottom:1em;
font-size: 13.5px;
display: inline-block;
}
#table table,#table tr,#table td,#table th{
border: 1px solid #000 !important;
text-align:center;
}
b,strong{
font-weight:bold;
}
.tb_center table {
margin: 0 auto;
}
tr td:last-child{
text-align: justify;
}
</style>
</head>
<body class="sidebar-icon-only">
<div class="container">
<div class="row">
<div class="col-xs-12">
<div class="wrapper">
<table class="table" style="padding-top: -100px !important;">
<tbody>
<tr>
<th colspan="3" align="center">
<img src="'.$base_url.'themes/frontend/images/sam_header.jpg" height=100 width="450">
</th>
</tr>
</tbody>
</table><br><br>
<table class="table">
<tbody>
<tr>
<th colspan="2" align="left">
<p>
Report No : '.$sam_preshipment_info->pre_ship_id.'
</p>
</th>
<th align="right">
<p style="text-align: right;">
'.date("d.m.Y",strtotime($sam_preshipment_info->joinon)).'
</p>
</th>
</tr>
</tbody>
</table><br><br>
<table class="table" style="margin-left:0px;">
<tbody>
<tr>
<th colspan="3" align="center"><h4><u><b>PRE-SHIPMENT SURVEY REPORT</b></u></h4><br></th>
</tr>';
$output .='<tr>
<td colspan="3">
<label style="text-align: justify;">At the request of <b style="font-weight: bold;">M/s.';
$this->db->where('cid',$sam_preshipment_info->customer);
$clients=$this->db->get('clients')->row();
$output .=' '.$clients->name.', '.$clients->location.';
</b>, We did attend a survey on the external condition of
the cargo detailed below and supervised the loading of cargo into <b style="font-weight: bold;">'.$sam_preshipment_info->cargo.'</b> reefer container no. <b>'.$sam_preshipment_info->container_no.'.</b><br> </label>
</td>
</tr>
<tr>
<td colspan="3"><B>We now report as below:</B><br>
</td>
</tr>
<tr>
<th colspan="3"><b style="text-align: left;border-bottom: 2px solid #000;">
INVOICE PARTICULARS</b><br>
</th>
</tr>';
</tbody>
</table>
</div>
</div>
</div>
</div>
</body>
</html>';
echo $output;
}