Hello, i success display all the record when the button clicked

<html> <head lang="en"> <meta charset="UTF-8"> <link type="text/css" rel="stylesheet" href="bootstrap-3.2.0-dist\css\bootstrap.css"> <!--css file link in bootstrap folder--> <title>View Users</title> </head> <style>  
    .login-panel {  
        margin-top: 150px;  
    }  
    .table {  
        margin-top: 50px;  

    }  

</style> <body> <div class="table-scrol"> <h1 align="center">All the Users</h1> <div class="table-responsive"><!--this is used for responsive display in mobile and other devices--> <table class="table table-bordered table-hover table-striped" style="table-layout: fixed"> <thead> <tr> <th>kepada</th> <th>nama</th> <th>jawatan</th> </tr> </thead> <?php  
        include('db_connection.php'); 
        $view_users_query="select * from permohonan";//select query for viewing users.  
        $run=mysqli_query($dbcon,$view_users_query);//here run the sql query.  

        while($row=mysqli_fetch_array($run))//while look to fetch the result and store in a array $row.  
        {  
            $user_id=$row[0];  
            $kepada=$row[1];  
            $nama=$row[2];  
            $jawatan=$row[3];  
            $tarikh1=$row[4];
            $jam1=$row[5];
            $jam2=$row[6];
            $kerana=$row[7];
            $tarikh2=$row[8];
            $nama2=$row[9];
            $jawatan2=$row[10];
            $mohon=$row[11];
            $nama3=$row[12];
            $jawatan3=$row[13];
            $tarikh3=$row[14];

        ?> <tr> <!--here showing results in the table --> <td><?php echo $kepada;  ?></td> <td><?php echo $nama;  ?></td> <td><?php echo $jawatan;  ?></td> <td><a href="lihatpemohon.php?get=<?php echo $user_id ?>"><button class="btn btn-danger">LIHAT</button></a></td> <!--btn btn-danger is a bootstrap button to show danger--> </tr> <?php } ?> </table> </div> </div> </body> </html>

This seems work, it show my record from database. But i cannot update it :

<?php
session_start();
include('db_connection.php');

    $view_id=$_GET['get'];  
    $view_query="SELECT * FROM permohonan WHERE id='$view_id'"; 
    $run=mysqli_query($dbcon,$view_query);  
    while($row=mysqli_fetch_array($run))
    {  

        echo"Kepada :<input type='text' name='kepada' value='".$row['kepada']."' /><br><br>";
        echo'<br>Tuan,<br> <b><h4>MEMOHON KEBENARAN MENINGGALKAN PEJABAT OLEH PEGAWAI/KAKITANGAN BAHAGIAN TEKNOLOGI PENDIDIKAN NEGERI PERAK DAN RANGKAIAN</h4></b><br>';
        echo"Saya :    <input type='text' name='nama' value='".$row['nama']."' /><br><br>";
        echo"Jawatan :<input type='text' name='jawatan' value='".$row['jawatan']."' /><br><br>";
        echo"Pada :<input type='date' name='tarikh1' value='".$row['tarikh1']."' /><br><br>";
        echo"Dari jam :<input type='time' name='jam1' value='".$row['jam1']."' /><br><br>";
        echo"Hingga jam :<input type='time' name='jam2' value='".$row['jam2']."' /><br><br>";
        echo"Kerana :<input type='text' name='kerana' value='".$row['kerana']."' /><br><br>";
        echo"Tarikh :<input type='date' name='tarikh2' value='".$row['tarikh2']."' /><br><br>";
        echo"Nama Pemohon :<input type='text' name='nama2' value='".$row['nama2']."' /><br><br>";
        echo"Jawatan :<input type='text' name='jawatan2' value='".$row['jawatan2']."' /><br><br>";
    }  

?> <hr> <form role="form" method="post" action="lihatpemohon.php"> <div class="form-group"> <select name="mohon"> <option value="Diluluskan">Diluluskan</option> <option value="Tidak Diluluskan">Tidak Diluluskan</option> </select> </div> <div class="form-group">
                            Kepada :<select name="nama3"> <option value="MOKHTAR">Mokhtar</option> <option value="AZMAN">Azman</option> <option value="SHARUDDIN">Sharuddin</option> </select> </div> <div class="form-group">  
                                Jawatan :    <input style="width: 600px" placeholder="Ketua Pusat Kegiatan Guru/Ketua Unit/Ketua Penolong Pengarah" type="text" name="jawatan3" > </div> <div class="form-group">  
                                Tarikh :    <input style="width: 600px" placeholder="Ketua Pusat Kegiatan Guru/Ketua Unit/Ketua Penolong Pengarah" type="date" name="tarikh3"> </div> <br> <input class="btn btn-lg btn-success btn-block" type="submit" value="Update" name="adminmasuk" > </form> <?php  

if(isset($_POST['adminmasuk']))  
{  
    $view_id=$_POST['get'];
    $mohon=$_POST['mohon'];  
    $nama3=$_POST['nama3']; 
    $jawatan3=$_POST['jawatan3']; 
    $tarikh3=$_POST['tarikh3'];  

    if($mohon=='')  
    {  
        //javascript use for input checking  
        echo"<script>alert('Sila pilih Diluluskan/Tidak Diluluskan')</script>";  
    exit();//this use if first is not work then other will not show  
    }  

    if($nama3=='')  
    {  
        echo"<script>alert('Sila isi nama anda')</script>";  
    exit();  
    }  

    if($jawatan3=='')  
    {  
        echo"<script>alert('Sila nyatakan jawatan anda')</script>";  
    exit();  
    }

    if($tarikh3=='')  
    {  
        echo"<script>alert('Sila nyatakan tarikh anda respon')</script>";  
    exit();  
    }

//update the user into the database.  
    $admin_query="UPDATE `permohonan` SET `mohon`=:mohon,`nama3`=:nama3,`jawatan3`=:jawatan3,`tarikh3`=:tarikh3 WHERE `view_id`=:view_id"; 
    if(mysqli_query($dbcon,$admin_query)) 
    {  
        echo"<script>window.open('welcomeadmin.php','_self')</script>";  
    }  

}  

?>