How to write PHP code inside a variable output? - php

Question

I have a user table where I have to display a delete button and I need to make sure the current user cannot delete themselves.
In order to do that, I wrote some code as shown below, but it doesn't work.
The user table appears with the delete button in all the users, but I need to make sure the current user cannot delete their own user account.
while($row = mysqli_fetch_array($result)) {
$output .='<tr>
<td>'.$row["user_id"].'</td>
<td>'.$row["fullname"].' </td>
<td>'.$row["user_role"].'</td>
<td>'.$row["username"].'</td>
<td>'.$row["password"].'</td>
<td>'.$row["branch_id"].'</td>
<td>'.$row["registered_date"].'</td>
<td>
<button id="'.$row["user_id"].'" class="btn btn-warning btn-xs edit_data"><i class="fa fa-edit "></i></button>
if('.$_SESSION['username'].'!='.$row["username"].') {
<a id="'.$row["user_id"].'" class="btn btn-danger btn-xs delete"><i class="fa fa-times"></i></a> } </td>
</tr>';
}
$output .= '</table>';
echo $output;

Answer 1

You can not execute PHP in a string, you need to split your string creation.
while ($row = mysqli_fetch_array($result)) {
$output .='<tr>
<td>'.$row["user_id"].'</td>
<td>'.$row["fullname"].' </td>
<td>'.$row["user_role"].'</td>
<td>'.$row["username"].'</td>
<td>'.$row["password"].'</td>
<td>'.$row["branch_id"].'</td>
<td>'.$row["registered_date"].'</td>
<td>
<button id="'.$row["user_id"].'" class="btn btn-warning btn-xs edit_data"><i class="fa fa-edit "></i></button>';
if ($_SESSION['username'] != $row["username"]) {
$output .= '<a id="'.$row["user_id"].'" class="btn btn-danger btn-xs delete"><i class="fa fa-times"></i></a>';
}
$output .= '</td></tr>';
}
$output .= '</table>';
echo $output;

Answer 2

Since you output your variable right after the loop - you can do the following
<table>
<?php
while($row = mysqli_fetch_array($result))
{
?>
<tr>
<td><?=$row['user_id']; ?></td>
<td><?=$row['fullname']; ?></td>
<td><?=$row['user_role']; ?></td>
<td><?=$row['username']; ?></td>
<td><?=$row['password']; ?></td>
<td><?=$row['branch_id']; ?></td>
<td><?=$row['registered_date']; ?></td>
<td>
<?php
if($_SESSION['username'] != $row['username'])
{
?>
<a id="<?=$row['user_id']; ?>" class="btn btn-danger btn-xs delete"><i class="fa fa-times"></i></a>
<?php
}
?>
</td>
</tr>
<?php
}
?>
</table>