php + mysql แสดงข้อมูลออกมาหมดเลย อยากแยกส่วนกันคะ ช่วยแนะนำหนูหน่อยน่ะคะ ขอบคุณคะ

<? 
		
			$whereListPetMem = $_GET['id']  ? "where mem_id ='". $_GET['id']."'"  : "";
			$sqlListPetMem = "SELECT petmember.*,member.mem_firstname,breed.breed_name
							  FROM petmember INNER JOIN member 
							  ON petmember.mem_id = member.mem_id 
							  INNER JOIN breed
							  ON petmember.mem_id = breed.breed_id";
			$resultListPetMem = mysql_query($sqlListPetMem,$conn);
?>
<form name="form1" id="form1" method="post" action="" >
<a href="?name=user&file=petmember"><img src ="images\admin\listdog.png">&nbsp;สุนัขของคุณ</a>&nbsp;<a href="?name=user&file=petmember&action=addPetMember"><img src ="images\admin\adddog.png">&nbsp;เพิ่มสุนัข</a>
<center><b>ชื่อเจ้าของ:คุณ<?=$_SESSION['userMem']['mem_firstname']?></b></center>
<table border="0">
    <tr align="center" bgcolor="#D1DCEB">
	  <td width="211"><b>รูป</b></td>
      <td width="171"><b>พันธุ์สุนัข</b></td>
	  <td width="132"><b>อายุ</b></td>
      <td width="115"><b>เพศ</b></td>
      <td width="223"><b>รายละเอียด</b></td>
	  <td width="109"><b>Action</b></td>
    </tr>
<?
	while($dataListPetMem = mysql_fetch_array($resultListPetMem)){
		if($dataListPetMem){?>
		<tr align = "center">
			<td><? if( $dataListPetMem['picture']){ ?> 
			<img src="images/petmember/<?=$dataListPetMem['picture']?>" />
			<? }else {?>
			<img src="images/petmember/petmem_blank.gif"/>
			<? }?>
			</td>
			<td><?=$dataListPetMem['breed_name']?></td>
			<td><?=$dataListPetMem['age']?> ปี</td>
			<td><?=$dataListPetMem['sex']?></td>
			<td><?=$dataListPetMem['detail']?></td>
			<td><a href="?name=user&file=petmember&action=editPetMember&id=<?=$dataListPetMem['petmem_id']?>"><img src ="images\admin\edit.png" alt="แก้ไข" align="center"></a>
	  |<a href="?name=user&file=petmember&action=deletePetMember&id=<?=$dataListPetMem['petmem_id']?>"><img src ="images\admin\bin.png" alt="ลบ" align="center"></a>			</td>
		</tr>
 <? } 
	 	}?>
	</table>
</form>