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Sitede PHPSESSID kullanılıyor ben cookie yapmak istiyorum çünkü PHPSESSID olmayan bir like tıkladığında kullanıcı çıkış yapmış oluyor.

giris.php

<?PHP
$kad=$_SESSION["kad"];
include "config.php";
if (empty($kad))
    {
?>
<table width="100%"  border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><form name="form1" method="post" action="index.php?sayfa=uye_gir">
      <table width="100%"  border="0" cellpadding="0" cellspacing="0">
        <tr>
          <td valign="top" background="images/fon.gif" height="140"><table width="153" border="0" cellpadding="0" cellspacing="0">
              <tr>
                <td background="images/arrow.gif" colspan="2"><img src="images/arrow.gif" width="1" height="8"></td>
              </tr>
              <tr>
                <td class="baslik" colspan="2">&nbsp;&Uuml;ye Girişi </td>
              </tr>
              <tr>
                <td height="20" colspan="2"> &nbsp;&nbsp;<span class="style2">&gt; <span class="style4">Kullanıcı Adı</span> </span></td>
              </tr>
              <tr>
                <td style="padding-left: 20" colspan="2"><input name="kadi" type="text" id="kadi" style="width:100" size="15" maxlength="40"></td>
              </tr>
              <tr>
                <td height="20" colspan="2">&nbsp;&nbsp;<span class="style2">&gt; <span class="style4">Şifre</span></span></td>
              </tr>
              <tr>
                <td style="padding-left: 20; padding-bottom: 7" colspan="2"><input name="sifre" type="password" id="sifre" style="width:100" size="15" maxlength="40"></td>
              </tr>
              <tr>
                <td class="normalyazibuyuk" style="padding-left: 17" colspan="2">- <a href="index.php?sayfa=uyeol" class="ustlink">&Uuml;ye Ol </a></td>
              </tr>
              <tr>
                <td class="normalyazibuyuk" style="padding-left: 17" colspan="2">- <a href="index.php?sayfa=sifre_unuttum" class="ustlink">Şifremi Unuttum</a> </td>
              </tr>
              <tr>
                <td class="normalyazibuyuk"><label for="cb_cookieuser" style="border-style: outset; border-width: 0px; padding-left: 5px; padding-right: 2px"><input id="cb_cookieuser" style="border-style: outset; border-width: 0px;" tabIndex="1" type="checkbox" CHECKED value="0" name="cookieuser">Hatırla</label></td>
                <td align="right"><input name="Submit" type="submit" class="form1" value="Giriş"></td>
              </tr>
          </table></td>
        </tr>
      </table> 
    </form></td>
  </tr>
</table>
<?PHP
    }
else
    {
        $sql="SELECT * FROM kullanici WHERE kadi='$kad'";
        $calistir=@mysql_query($sql);
        $isim=@mysql_result($calistir,0,"ad");
        $id=@mysql_result($calistir,0,"no");
        $soyisim=@mysql_result($calistir,0,"soyad");
        $tarih=@mysql_result($calistir,0,"tarih");
        
?>
<table width="100%"  border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td>
        <table width="100%"  border="0" cellpadding="0" cellspacing="0">
          <tr>
            <td valign="top" background="images/fon.gif" height="140"><table width="153" border="0" cellpadding="0" cellspacing="0">
                <tr>
                  <td background="images/arrow.gif"><img src="images/arrow.gif" width="1" height="8"></td>
                </tr>
                <tr>
                  <td class="baslik"> &nbsp;&Uuml;ye Men&uuml;s&uuml; </td>
                </tr>
                <tr>
                  <td class="normalyazi" ><?PHP echo " Hosgeldiniz <b>$isim $soyisim</b>"; ?></td>
                </tr>
                <tr>
                  <td class="normalyazi">Kayıt Tarihiniz : <?PHP echo " $tarih"; ?></td>
                </tr>
                <tr>
                  <td align="right" ><div align="left" class="style1"><span class="normalyazi"><a href="index.php?sayfa=profil&<? echo SID ?> " class="ustlink">&nbsp;&nbsp;Profil</a></span></div></td>
                </tr>
                <tr>
                  <td align="right" ><div align="left" class="style1"><a href="index.php?sayfa=cikis&<? echo SID ?>" class="ustlink">&nbsp;&nbsp;&Ccedil;ıkış</a></div></td>
                </tr>
                <tr>
                  <td>&nbsp;&nbsp;<? if ($kad=="yonetici) { ?> <a href="yonetim/index.php?<? echo SID ?>" target="_blank" class="ustlink">Y&ouml;netim Sayfası</a> <? } ?> </td>
                </tr>
                <tr>
                  <td align="right">&nbsp;</td>
                </tr>
            </table></td>
          </tr>
      </table>
    </td>
  </tr>
</table>
<?PHP
    }
?>

uye_gir.php

<?PHP
$kadi=$_POST["kadi"];
$sifre=$_POST["sifre"];
$hatirla= $_POST['hatirla'];
@session_start();
include "config.php";

if ($HTTP_REFERER) {
$goto = $HTTP_REFERER;
} else {
$goto = "index.php";
}

$sql="SELECT * FROM kullanici WHERE (kadi='$kadi' AND sifre='$sifre' AND onay='E')";
        $calistir=mysql_query($sql);
        if (@mysql_num_rows($calistir)==0) 
            { ?>
<br>
<br>
<br>
<br>
<div align="center"><span class="style1">Böyle bir kullanıcı bulunmamaktadır, ya da aktifleştirilmemiştir.</span>
  <?
            }
        $kad=@mysql_result($calistir,0,"kadi");
        $sifre2=@mysql_result($calistir,0,"sifre");
        if ($sifre2==$sifre)
            {
                $_SESSION["kad"]=$kad;
                //echo $_SESSION["kad"];
                echo "<br><br><br><br><br><div align=center><span class=style1>Giriş başarılı, Hoşgeldiniz....</span>";
                $sayfa="index.php";
@header("Location: $sayfa");

            }
?>
</div>

giris.php nin başına session_start(); koymadan session değeri alamazsın bu nedenle oradaki if(empty sorgusu boşuna yapmış olursun