set value to dropdown list php อยากให้ dropdown list แสดงค่าที่เคยเลือกไว้ตอนเพิ่มข้อมูล ยังไงค่ะ

<select name="value_level" id="value_level">
					<option value='Me-too' <?php if($objResult["value_level"]=="Me-too"){echo "selected";}?>>Me-too</option>
			  		<option value='Innovative' <?php if($objResult["value_level"]=="Innovative"){echo "selected";}?>>Innovative</option>
                    <option value='Excellence' <?php if($objResult["value_level"]=="Excellence"){echo "selected";}?>>Excellence</option>
                    <option value='Innovation' <?php if($objResult["value_level"]=="Innovation"){echo "selected";}?>>Innovation</option>
				</select>

<script type="text/javascript">
    $('#line option[value=<?php echo $row['line_id'];?>]').attr("selected", true);
</script>

<?php
$list_ddl = array(
							"1"=>"January",
							"2"=>"February",
							"3"=>"March",
							"4"=>"April",
							"5"=>"May",
							"6"=>"June",
							"7"=>"July",
							"8"=>"August",
							"9"=>"September",
							"10"=>"October",
							"11"=>"November",
							"12"=>"December",
						);
$s = isset($_POST["ddl"])? $_POST["ddl"] : 0;
?>

<form action="#" method="post">

<label for="ddl">Month :</label>
	<select name="ddl" id="ddl">
	<option value="0">-- select --</option>
	<?php
		foreach($list_ddl as $k =>$v) {
		if($s == $k) {
			$sel = "selected";
		}else {
			$sel = "";
		}
	?>
		<option value="<?php echo $k;?>" <?php echo $sel;?>><?php echo $v;?></option>
	<?php
		}
	?>
	</select>
	
	<input type="submit" name="btn_submit" value="Click...">
</form>

<form method="post"  >
&nbsp;
<font color="FFFFFF">Machine</font>

<select neam="top" id="top"onchange="submit()">
<option value='0'>-Select Top-</option>
<option value  ='1'<?if($_POST["top"]=="1"){ echo " selected"; } ?>Top1</option>
 <option value='2' <?if($_POST["top"]=="2"){ echo " selected"; } ?>Top2</option>
 <option value='3"'<?if($_POST["top"]=="3"){ echo " selected"; } ?>Top3</option>

 </select>    
     
 

</form></td><td>