Modal of bootstrap does not show its corresponding content using CodeIgniter

Situation:

I have the following view in CodeIgniter that shows a table with users, one of the fields of each user is the "Edit" option, which when clicked on it opens a modal in which the user fields can be modified , but in this case, to simplify, it shows the name of the corresponding user:

<table class="table table-striped">
    <thead>
    <tr>
        <th>Id</th>
        <th>Nick</th>
        <th>Nombre</th>
        <th>Apellidos</th>
        <th>Correo</th>
        <th>Fecha de registro</th>
        <th>Estado</th>
        <th>Acciones</th>
    </tr>
    </thead>
    <tbody>

    <?php
    foreach ($users as $usr) { //Comienzo del foreach
    ?>

        <tr>
            <td>
                <?php echo $usr['id']; ?>
            </td>
            <td>
                <?php echo $usr['nick']; ?>
            </td>
            <td>
                <?php echo $usr['nombre'] ?>
            </td>
            <td>
                <?php echo $usr['apellidos'] ?>
            </td>
            <td>
                <?php echo $usr['email'] ?>
            </td>
            <td>
                <?php echo date_format(new DateTime($usr['fecha_registro']), 'd/m/Y'); ?>
            </td>
            <td>
                <?php echo botonEstado($usr['estado']); ?>
            </td>
            <td>
                <div class="btn-group">
                    <a class="btn btn-sm btn-info" title="Editar" data-toggle="modal" data-target="#modalEdit"><span class="glyphicon glyphicon-pencil"></span></a>
                    <div id="modalEdit" class="modal fade">
                        <div class="modal-dialog">
                            <div class="modal-content">
                                <div class="modal-header">
                                    <h4 class="modal-title">Editando los campos de <?php echo  $usr['nick']; ?></h4>
                                </div>
                            </div><!-- /.modal-content -->
                        </div><!-- /.modal-dialog -->
                    </div><!-- /.modal -->
                </div>
            </td>
        </tr>
    <?php } ?><!-- Aquí termina el foreach -->
    </tbody>
</table>

Problem:

All the data in the table is displayed in the expected way, however, when clicking on "Edit" it always shows me the name of the same user (the first of the loop)

What could be going wrong?