如何按id排序用户数据

I am working on a project and here I need to fetch data from a MySQL database. And I need to fetch only that data which contain 38. For example - I have a table which contain user_from and user_to and msg. Okay, now I have to fetch all data if user_from contain 38. So I am able to fetch it but the problem is that is it fetching only one row from database nut I want all row which contain user_from 38. So Please help me.

As Fast As you can

Codes----

<?php
include 'navigation.php';
include 'conn.php';
if(!$_SESSION["login"]){ 
   header("location:index.php");
   die;
}
if ($_SESSION['SESS_MEMBER_ID']) {
  $id = $_SESSION['SESS_MEMBER_ID'];
} else {
  echo "Sorry We are unable to get your id";
}
echo "<center><button type='button' class='btn btn-default' id='myBtn'> Send a message </button></center>";
?>


<!DOCTYPE html>
<html>
<head>
<style>
/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 100px; /* Location of the box */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
    position: relative;
    background-color: #fefefe;
    margin: auto;
    padding: 0;
    border: 1px solid #888;
    width: 80%;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s
}

/* Add Animation */
@-webkit-keyframes animatetop {
    from {top:-300px; opacity:0}
    to {top:0; opacity:1}
}

@keyframes animatetop {
    from {top:-300px; opacity:0}
    to {top:0; opacity:1}
}

/* The Close Button */
.close {
    color: white;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}

.modal-body {padding: 2px 16px;}

.modal-footer {
    padding: 2px 16px;
    background-color: #5cb85c;
    color: white;
}
select {
    width: 100%;
}
</style>
</head>
<body>

<!-- Trigger/Open The Modal -->

<!-- The Modal -->
<div id="myModal" class="modal">

  <!-- Modal content -->
  <div class="modal-content">
    <div class="modal-header">
      <span class="close">×</span>
      <h2>Send a Message</h2>
    </div>
    <div class="modal-body">
     
  
    
    <label for="Friends">Select Friends:</label>
    <select id="country" name="country">
      <option value="Select Friends">Select Friends...</option>
      <option value="australia">Australia</option>
      <option value="canada">Canada</option>
      <option value="usa">USA</option>
    </select>
 <br> <br>
 <textarea cols="149" rows="12"></textarea>
<button type='button' class='btn btn-default' id='myBtn' name="sendmsgnow"> Send Now </button>

    </div>
    <div class="modal-footer">
      <h3>Modal Footer</h3>
    </div>
  </div>

</div>

<script>
// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}
</script>

</body>
</html>
<?php
$aquery = "SELECT * FROM register WHERE id='$id'";
$aresult = mysqli_query($conn,$aquery);
while ($row = mysqli_fetch_assoc($aresult)) {
    $user_id[] = $row["id"];
}
if (isset($_POST["sendmsgnow"])) {
    $query = "INSERT INTO chats (user_from,user_to,msg_body,userdate,usertime) VALUES ('$id','1','$message','')";
    $result = mysqli_query($conn,$query);
if ($result) {
    echo "Your Message has been sent";
}
}
$b_query = "SELECT * FROM chats WHERE user_from='$id'";
$b_result = mysqli_query($conn,$b_query);
while ($data = mysqli_fetch_array($b_result)) {
$messages[] = $data["msg_body"];
$user_from = $data["user_from"];
if($user_from==38){
$d_query = "SELECT * FROM register WHERE id='$user_from'";
$d_result = mysqli_query($conn,$d_query);
while ($fdata = mysqli_fetch_assoc($d_result)) {
$frname = $fdata["firstname"];
echo "$frname sent you a message <br> $messages[]";
}
} 
}
?>
  

</div>

As I told in comments you can use a nested while loop for this

Updated

while ($data = mysqli_fetch_array($c_result)) {
    $messages[] = $data["msg_body"];
    $user_from = $data["user_from"];
    if($user_from==38){
        $d_query = "SELECT * FROM register WHERE id='$user_from'";
        $d_result = mysqli_query($conn,$d_query);
        while ($fdata = mysqli_fetch_assoc($d_result)) {
            $frname = $fdata["firstname"];


        }

    } //This is end of if
        echo "$frname sent you a message <br> $messages[]";
}//This END of First while loop

I have wrote what I have understood. Hope it helps you