<?php
        if($_POST)
        {
        $eposta  = $_POST["email"];
        $sifre   = sha1($_POST["sifre"]);
 
        $hatirla = $_POST["hatirla"];

        if(!empty($eposta) || !empty($sifre))
        {
            $sorgu=$db->prepare("SELECT * FROM xxxxx WHERE email=? and sifre=?");
            $sorgu->execute(array($eposta,$sifre));
            $islem=$sorgu->fetch();
 
            if($islem) {

                $_SESSION['email'] = $islem['email'];
                $_SESSION['id']    = $islem['id'];
                $_SESSION['adi']   = $islem['adi'];

              if ($yetki!=='yetkili') {
                  header("Location:panel");
              }else{ 
                  header("Location:panel");
          }}
            else
            {
              echo "<span style='color:white'>Kullanıcı Adınız veya Şifreniz Yanlış</span>";
            }
        }
        else
        {
              echo "<span style='color:white'>Boş Alan Bırakmayınız.</span>";
        }           
        if($hatirla=="ok") {

              if(isset($email) && isset($sifre))
              {
              setcookie($email, time()+60*60*24);
              setcookie($sifre, time()+60*60*24);
              }
              }
              else
              {
              setcookie($email, time()-60*60*24);
              setcookie($sifre, time()-60*60*24);
            }}
            ?>
           <form class="form-signin" method="post">
        
                <input type="email" style="align-content: center; border:2px solid #ed217c; color: red; text-align: center; font-size: 12px; color: black; opacity: 0.90; max-width: 250px" value="<?php if(isset($_COOKIE[$email])) $_COOKIE[$email]; ?>" 
                class="form-control" name="email" placeholder="<? echo constant('USER_OR_ENTER'); ?>">

            
                <input type="password" style="align-content: center; border:2px solid #ed217c; color: red; text-align: center; font-size: 12px; color: black; opacity: 0.90; max-width: 250px" value="<?php if(isset($_COOKIE[$sifre])) echo $_COOKIE[$sifre]; ?>"
                class="form-control" name="sifre" placeholder="<? echo constant('PASS_ENTER'); ?>">


                <input type="checkbox"; name="hatirla" id="lng1" value="ok">
                <label for="lng1"> <span style="text-shadow: 0px 2px 2px rgba(20, 20, 20, 0.8);"><? echo constant('REMEMBER_ME'); ?></span></label>
                



    <div class="form-group">
      <input type="submit" name="gonder" id="gonder" style="border:1px solid #ed217c;" class="btn btn-primary" value="<? echo constant('ENTER'); ?>">