PHP Friend::get_username示例

     echo json_encode($html);
 } else {
     if ($op == "get users") {
         $html = "";
         $dropbox = "<a class='dropdown-button btn' href='#' data-activates='dropdown1'>Delete User</a>";
         $dropbox .= "<ul id='dropdown1' class='dropdown-content'>";
         include 'connection.php';
         $sql = "select username from Group8_users where admin = 'false'";
         $arr = array();
         $res = $conn->query($sql);
         while ($row = $res->fetch_assoc()) {
             $person = new Friend($row["username"]);
             $arr[$row["username"]] = $person;
             //$dropbox .= "<li><a href='#!'>";
             $dropbox .= "<li><a href='#!' class='user-cards'>";
             $dropbox .= $person->get_username() . "</a></li>";
         }
         $dropbox .= "</ul>";
         $html['dropdown'] = $dropbox;
         $html['cards'] = build_friend_cards($html, $arr);
         include 'connection_close.php';
         echo json_encode($html);
     } else {
         if ($op == "delete post") {
             $postId = $_GET['postId'];
             $start = "SET SQL_SAFE_UPDATES = 0;";
             $end = "SET SQL_SAFE_UPDATES = 1;";
             $like = "delete from Group8_likes where postId = " . $postId . ";";
             $comment = "delete from Group8_comments where postId = " . $postId . ";";
             $posts = "delete from Group8_posts where postId = " . $postId . ";";
             include 'connection.php';