สอบถามการเเสดงกระทู้ ต้องการให้เเสดงกระทู้เฉพาะคนที่เป็นเพื่อนกับผู้ใช้ ( user ที่ log in)

<div id="newsfeed_contain">
<?php 
			  
			   //run number page
			  $strSQLa = "SELECT * FROM topic";
			  $resulta = mysql_query($strSQLa)or die(mysql_error().$strSQaL);
			  $runnumber = 0;
			  while ($rowa=mysql_fetch_array($resulta)){
			  //echo $row['topic_name'];			  
			  
			  $idMembera = $rowa['member_id'];
			  //echo $member_id."AAA<br>";
			  //echo $idMember."ddd<br>";
			  
			  $strSQL2a = "SELECT * FROM friend WHERE friend_1 = '$member_id' AND friend_2 = '$idMembera' ";
			  $result2a = mysql_query($strSQL2a)or die(mysql_error().$strSQL2a);
			  $row2a=mysql_fetch_array($result2a);
			  $friend2a = $row2a['friend_2'];
			  
			  if($friend2a != '' or $member_id == $idMembera){
				$runnumber = $runnumber + 1;
				
			  }
			  }
			  //run number page
			  
			  
			  $strSQL = "SELECT * FROM topic";
			  $result = mysql_query($strSQL)or die(mysql_error().$strSQL);
			  
				$Num_Rows = $runnumber;
				
				$Per_Page = 10;   // Per Page
				
				$Page = $_GET["Page"];
				if(!$_GET["Page"])
				{
					$Page=1;
				}
				
				$Prev_Page = $Page-1;
				$Next_Page = $Page+1;
				
				$Page_Start = (($Per_Page*$Page)-$Per_Page);
				if($Num_Rows<=$Per_Page)
				{
					$Num_Pages =1;
				}
				else if(($Num_Rows % $Per_Page)==0)
				{
					$Num_Pages =($Num_Rows/$Per_Page) ;
				}
				else
				{
					$Num_Pages =($Num_Rows/$Per_Page)+1;
					$Num_Pages = (int)$Num_Pages;
				}
				
				$strSQL .=" order by topic_id DESC ";
				$objQuery  = mysql_query($strSQL);
							  
			  //echo $Page;
			  $a = ($Page * $Per_Page) - 9;
			  $b = $Page * $Per_Page;
			  $c = 0;
			  //echo $a;
			  //echo " and ";
			  //echo $b;
			  while ($row=mysql_fetch_array($objQuery)){
				//while ($row=mysql_fetch_array($objQuery)){
			  //echo $row['topic_name'];			  
			  //echo $row=mysql_fetch_array($objQuery);
			  
			  
			  $idMember = $row['member_id'];
			  //echo $member_id."AAA<br>";
			  //echo $idMember."ddd<br>";
			  
			  $strSQL2 = "SELECT * FROM friend WHERE friend_1 = '$member_id' AND friend_2 = '$idMember' ";
			  $result2 = mysql_query($strSQL2)or die(mysql_error().$strSQL2);
			  $row2=mysql_fetch_array($result2);
			  $friend2 = $row2['friend_2'];
			  
			  if($friend2 != '' or $member_id == $idMember){
				  
				//$strSQL2 .=" order by friend DESC LIMIT $Page_Start , $Per_Page";
			  //while ($row10=mysql_fetch_array($objQuery)){
			  //echo $row2['friend_2'];
			  
			  
			  $strSQLmember = "SELECT * FROM member WHERE member_id = '$idMember'";
			  $resultmember = mysql_query($strSQLmember)or die(mysql_error().$strSQLmember);
			  $rowmember=mysql_fetch_array($resultmember);	
			  		  
			  $c = $c + 1;
			  if($b >= $a && $c >= $a){
			  
			  //echo $a;
			  //echo $member_name;
			  //echo $idMember;
			 
			  
			  //echo $rowfriend['friend_2'];
			  //if(mysql_query($rowmember)){
			  
			  ?>
              
              
<div class="newsfeed">
<div class="pic_newsfeed">
<?php if($rowmember['member_pic'] == ''){?>
                    <img src="images/bgprofile1.jpg" width="50" height="50" />
                    <?php }else{?>
                    <img src="myfile/<?php echo $rowmember["member_pic"];?>" width="50" height="50" />
                   <?php } ?>
</div>

<div class="text_newsfeed">
<span><?php echo $rowmember['member_name']?></span>
<span><?php echo $row['topic_date']; ?></span>
</div>

<div class="text_newsfeed2">
<!--<a href="news_feed_comment.php?topic_id=<?php echo $row["topic_id"];?>" class="new-webbroad">-->
<?php  echo $row['topic_name']; ?>
                      </a>
<span style="float:right"><input type="button" name="button" id="button" value="อ่านรายละเอียดโพสต์" onclick="window.location='news_feed_comment.php?topic_id=<?php echo $row["topic_id"];?>'" / class="btn btn-default"> </span>
</div>  

</div>              

<?php
			  $a = $a+1;			  
			 	 }
			  }
			  //$topic_date = $row['topic_date']."<br>";
			  //echo $row['topic_detail'];
			  
			  }
			?>
            
              <br>
ทั้งหมด 
<?= $Num_Rows;?> 
กระทู้ หน้า : 

<?
/*=$Num_Pages;*/
?><?
if($Prev_Page)
{
	echo " <a href='$_SERVER[SCRIPT_NAME]?Page=$Prev_Page'><< ก่อนหน้า</a> ";
}

for($i=1; $i<=$Num_Pages; $i++){
	$Page1 = $Page-2;
	$Page2 = $Page+2;
	if($i != $Page && $i >= $Page1 && $i <= $Page2)
	{
		echo "[ <a href='$_SERVER[SCRIPT_NAME]?Page=$i&txtKeyword=$_GET[txtKeyword]'>$i</a> ]";
	}
	elseif($i==$Page)
	{
		echo "<b> $i </b>";
	}
								}
if($Page!=$Num_Pages)
{
	echo " <a href ='$_SERVER[SCRIPT_NAME]?Page=$Next_Page'>ถัดไป >></a> ";
}
            
     ?>   


</div>