Edit users in database using sql - php

Question

I'm trying to generate a table of all user accounts and then have buttons next to each user to either delete or change the account level of the user (admin or not admin). What would be the best way to go about this?
Here's my code:
<?php
$query = mysql_query("SELECT user_name,user_id,user_email,user_level
FROM users
ORDER BY user_name ASC");
echo '<table class="table table-hover">
<thead class="thead-default">
<tr>
<th>Username</th>
<th>User ID</th>
<th>Email</th>
<th>Level</th>
<th>Options</th>
</tr>
</thead>';
while($row = mysql_fetch_array($query)){
echo '<tbody>
<tr>
<td class="col-3">' .$row['user_name'].'</td>
<td class="col-3">' .$row['user_id'].'</td>
<td class="col-3">' .$row['user_email'].'</td>
<td class="col-3">' .$row['user_level'].'</td>
<td class="col-3"><a class="btn btn-success" href="#" data-toggle="tooltip" title="Edit"><span class="glyphicon glyphicon-pencil"></span></a>
<a class="btn btn-success" href="#" data-toggle="tooltip" title="Promote"><span class="glyphicon glyphicon-arrow-up"></span></a>
<a class="btn btn-danger" href="#"><span class="glyphicon glyphicon-arrow-down" data-toggle="tooltip" title="Demote"></span></a>
<a class="btn btn-danger" href="delete.php" data-toggle="tooltip" title="Delete"><span class="glyphicon glyphicon-trash"></span></a>
</td>
</tr>
</tbody>';
}
echo '</table>'; ?>
Any help would be appreciated :)
Edit: The admin/standard user is set via user_level with 0 being standard user and 1 being admin
edit 2: Added code
<?php
include 'connect.php';
include 'header.php';
mysql_query("UPDATE users SET user_level='1' WHERE user_id='".$_GET['user_id']."'");
die("User promoted to admin.");
include 'footer.php';
?>
Getting no luck with it, will try to add if statements for feedback on if database row changes

Answer 1

This here is example of code, because your questions lack some details, so i am sharing my code.
<table>
<tr>
<th>User Email </th>
<th>Date & Time </th>
<th>Complain Number</th>
<th>Complain Type</th>
<th>Description</th>
<th>Status</th>
</tr>
<?php
$ccount =1;
$email= $_SESSION["email"];
$query = mysqli_query($con,"Select * from new_complain where new_email =
'$email'");
while($rows = $query->fetch_assoc())
{
?>
<tr>
<input type="hidden" name="<?php echo 'sstd' . $ccount ; ?>" value="<?php
echo $rows['complain_type']; ?>" placeholder="Student Name" />
<td><?php echo $_SESSION["email"]; ?></td>
<td><?php echo $rows['complain_date']; ?></td>
<td><?php echo $rows['new_id']; ?></td>
<td><?php echo $rows['complain_type']; ?></td>
<td><?php echo $rows['new_complain']; ?></td>
<td><?php echo $rows['comlain_status']; ?></td>
</tr>
<?php
$ccount++;
} ?>
</table>

Answer 2

Without full details, it would be something like this:
<a class="btn btn-success" href="promote.php?id='.$row['user_id'].'" data-toggle="tooltip" title="Promote"><span class="glyphicon glyphicon-arrow-up"></span></a>
<a class="btn btn-danger" href="demote.php?id='.$row['user_id'].'"><span class="glyphicon glyphicon-arrow-down" data-toggle="tooltip" title="Demote"></span></a>
Then you need a promote.php in the same directory as this file, which would look like this:
<?php
mysql_query("UPDATE users SET user_level='1' WHERE user_id='".$_GET['user_id']."'");
die("User promoted to admin user.");
And a demote.php like so:
<?php
mysql_query("UPDATE users SET user_level='0' WHERE user_id='".$_GET['user_id']."'");
die("User demoted to standard user.");