if (isset($_POST['search'])) {
  
    $name = htmlspecialchars(($_POST['search']));

    $name = "%".$name."%";
  
    $query = $db->prepare("SELECT * FROM posts WHERE title LIKE :name");
    $query->bindParam(":name", $name, PDO::PARAM_STR);
    $query->fetchAll(PDO::FETCH_ASSOC);
    $query->execute();
}