invisio v2.0

<?php
include('../../../config/main_function.php');
$secure = "cAh3DrJACzw4RbU";
$connection = connectDB($secure);

$sql = "SELECT * FROM tbl_member";
$res = mysqli_query($connection, $sql);
$row = mysqli_fetch_assoc($res);

$id = mysqli_real_escape_string($connection, $_POST['id']);

$sql_noti = "SELECT * FROM tbl_notifications WHERE id = '$id'";
$res_noti = mysqli_query($connection, $sql_noti) or die($connection->error);
$row_noti = mysqli_fetch_assoc($res_noti);

?>
<style>
    .select2-dropdown {
        z-index: 9999999;
    }

.select2-container--open {
        z-index: 9999999 !important;
    }

.select2-selection__rendered {
        line-height: 36px !important;
        /* font-size: medium; */
    }

.select2-container .select2-selection--single {
        height: 36px !important;
    }

.select2-selection__arrow {
        height: 36px !important;
    }

.select2-container--default .select2-selection--single {
        border: 1px solid #e5e6e7;
    }
</style>
<div class="modal-header">
    <h4 class="modal-title">เพิ่มแจ้งเตือน</h4>
    <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
</div>
<div class="modal-body">
    <form id="form_edit" method="POST">
        <input type="hidden" id="id" name="id" value="<?php echo $id; ?>">
        <div class="form-group">
            <label for="user_id">สมาชิก</label>
            <select class="select2" name="user_id" id="user_id">
                <option disabled>เลือกสมาชิก</option>
                <?php
                while ($row = mysqli_fetch_assoc($res)) {
                ?>
                    <option value="<?php echo $row['member_id']; ?>" <?php echo ($row['member_id'] == $row_noti['member_id']) ? "selected" : ""; ?>><?php echo ($row['name_th'] != '') ? $row['name_th'] : $row['name_en']; ?></option>
                <?php
                }
                ?>
            </select>
        </div>
        <div class="form-group">
            <label for="title">หัวข้อแจ้งเตือน</label>
            <input type="text" class="form-control" id="title" name="title" value="<?php echo $row_noti['title']; ?>">
        </div>
        <div class="form-group">
            <label for="message">เนื้อหา</label>
            <textarea id="message" class="form-control" name="message" required><?php echo $row_noti['message']; ?></textarea>
        </div>
    </form>
</div>
<div class="modal-footer">
    <button type="button" class="btn btn-primary" onclick="EditNoti()"><i class="fa fa-check"></i>&nbsp;บันทึก</button>
    <button type="button" class="btn btn-white" data-dismiss="modal">ปิด</button>
</div>
<script>
    $(".select2").select2({
        width: "100%"
    });
</script>