อยากให้ชื่อไฟล์ของรูปหลังจากอัพโหลดแล้วเป็นชื่อเดิมแก้ไขยังไงครับ

<?Php
include("../include/settings.php");
include("../include/connect.php");
if ($_FILES["fileupload"] == "") exit("");
$n = (count($_FILES["fileupload"]["name"])-1 >= 9 ? 9 : count($_FILES["fileupload"]["name"])-1);
for ($i=0;$i<=$n;$i++){
	$filename = $_FILES["fileupload"]["name"][$i];
	$tmp_name = $_FILES["fileupload"]["tmp_name"][$i];
	$size = $_FILES["fileupload"]["size"][$i]/1024/1024;
	$ext = pathinfo($filename, PATHINFO_EXTENSION);
	if (!in_array($ext, $settings["filetype"])) break 1;
	if ($size > $settings["filelimesize"]) break 1;
	$rand = substr(str_shuffle('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'),0,8);
	if (move_uploaded_file($tmp_name, "../file/".$rand.".".$ext)){
		if (!mysql_query("INSERT INTO `pic` (`id`, `uid`, `code`, `fname`) VALUES (NULL, '0', '".$rand."', '".$rand.".".$ext."');")) die("My SQL Error: ".mysql_error());
?>
        <div class="alert alert-dismissable alert-info">
		  <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
          <div class="row">
            <div class="col-lg-4">
              <div class="show-pic">
                <a href="<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>" target="_blank"><img src="<?Php echo $settings["url"]; ?>/s/<?Php echo $rand; ?>" alt="Pic By UpScript V1"></a>
              </div>
            </div>
            <div class="col-lg-7">
              <form class="bs-example form-horizontal">
                <fieldset>
                  <div class="form-group">
                  <label for="inputEmail" class="col-lg-5 control-label input-sm">Url</label>
                  <div class="col-lg-7">
                    <input type="text" class="form-control input-sm" onClick="this.select();" value="<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>" readonly>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail" class="col-lg-5 control-label input-sm">HTML Full</label>
                  <div class="col-lg-7">
                    <input type="text" class="form-control input-sm" onClick="this.select();" value="&lt;a href=&quot;<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>&quot; target=&quot;_blank&quot; title=&quot;<?Php echo $settings["alt"]; ?>&quot;&gt;&lt;img src=&quot;<?Php echo $settings["url"]; ?>/s/<?Php echo $rand; ?>&quot; alt=&quot;Pic By UpScript V1&quot; /&gt;&lt;/a&gt;" readonly>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail" class="col-lg-5 control-label input-sm">HTML Thumbnail</label>
                  <div class="col-lg-7">
                    <input type="text" class="form-control input-sm" onClick="this.select();" value="&lt;a href=&quot;<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>&quot; target=&quot;_blank&quot; title=&quot;<?Php echo $settings["alt"]; ?>&quot;&gt;&lt;img src=&quot;<?Php echo $settings["url"]; ?>/t/<?Php echo $rand; ?>&quot; alt=&quot;Pic By UpScript V1&quot; /&gt;&lt;/a&gt;" readonly>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail" class="col-lg-5 control-label input-sm">BBCode Full</label>
                  <div class="col-lg-7">
                    <input type="text" class="form-control input-sm input-sm" onClick="this.select();" value="[url=<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>][img]<?Php echo $settings["url"]; ?>/s/<?Php echo $rand; ?>[/img][/url]" readonly>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail" class="col-lg-5 control-label input-sm">BBCode Thumbnail</label>
                  <div class="col-lg-7">
                    <input type="text" class="form-control input-sm" onClick="this.select();" value="[url=<?Php echo $settings["url"]; ?>/v/<?Php echo $rand; ?>][img]<?Php echo $settings["url"]; ?>/t/<?Php echo $rand; ?>[/img][/url]" readonly>
                  </div>
                </div>
              </fieldset>
            </form>
          </div>
        </div>
      </div>
<?Php
	}
}
?>