<?php
session_start();
try{
$db = new PDO("mysql:host=localhost;dbname=[COLOR=#B8312F]dbname_adi[/COLOR];charset=utf8", "[COLOR=#B8312F]root[/COLOR]","[COLOR=#B8312F]12345678[/COLOR]");
}catch(PDOException $e){
echo $e->getMessage();
}
?>

ob_start();
$sorgu = $db->query("SELECT * FROM tablo_adi WHERE id = 1")->fetch(PDO::FETCH_ASSOC);
$admin_setting = $sorgu;
<div id="page-wrapper"> <div id="page-inner">
<div class="row">
<div class="col-md-12">
<h1 class="page-head-line">Ayarlar</h1>
<h1 class="page-subhead-line">Sitenizin genel ayarlarını bu bölümden düzenleyebilirsiniz.</h1>
</div> </div>
<form action="netting/islem.php" method="POST">
<div class="form-group col-md-3">
<label>Telefon Numarası</label>
<input class="form-control" type="text" name="ayar_telefon" value="<?php echo $admin_setting['ayar_telefon']; ?>">
</div>