how to display ticket where i want data from booking page in codeigniter - mysql

Question

In the previous page i filled payment details and submited and it shows train booked and i want to print ticket but im not getting data of the present booking .i tried to get data with booking_id but its not retrieving data.i can get retrieve data with passenger_id but it is not unique bcz one user can book multiple trains so it shows first entry in the database if there are multiple entries by one passenger .but im not being to get data with booking_id.help me!!!!!!
model
public function viewtrain($booking_id=null)
{
if($booking_id)
{
$this->db->select('*');
$this->db->from('booked');
$this->db->where('booking_id=?');
$alltrains=$this->db->get();
return $alltrains->result();
}
}
view
<table class="table table-type " style="text-align:center">
<thead>
<tr>
<th scope="col">Train ID</th>
<th scope="col">Origin</th>
<th scope="col">Destination</th>
<th scope="col">Date</th>
<th scope="col">Arrival Time</th>
<th scope="col">Departure Time</th>
<th scope="col">Class</th>
<th scope="col">Price</th>
<th scope="col">Action</th>
</tr>
</thead>
<tbody>
<?php if(count($alltrains)):?>
<?php foreach($alltrains as $alltrain): ?>
<tr class="table-type">
<td><?php echo $alltrain->booking_id; ?></td>
<td><?php echo $alltrain->origin; ?></td>
<td><?php echo $alltrain->destination; ?></td>
<td><?php echo $alltrain->date; ?></td>
<td><?php echo $alltrain->arrivaltime; ?></td>
<td><?php echo $alltrain->departuretime; ?></td>
<td><?php echo $alltrain->class; ?></td>
<td><?php echo $alltrain->price; ?></td>
<td>
<?php echo anchor("admin/edittrain/{$alltrain->train_id}",'Edit',['class'=>'btn btn-outline-primary','style'=>'font-size:15px;height:20px;width:40%;padding-top :0px;']); ?>
<?php echo anchor("admin/deletetrain/{$alltrain->train_id}",'Delete',['class'=>'btn btn-outline-danger','style'=>'font-size:15px;height:20px;width:50%;padding-top :0px;']); ?>
</td>
</tr>
<?php endforeach;?>
<?php else:?>
<tr>
<td></td>
<td></td>
<td></td>
<td><h4>NO Trains Available!!</h4></td>
<td></td>
<td></td>
<td></td>
</tr>
<?php endif;?>
</tbody>
</table>
Controller
public function ticket($booking_id=null)
{
$this->load->model('user_model');
$alltrains=$this->user_model->viewtrain($booking_id);
$this->load->view('ticket',['alltrains'=>$alltrains]);
}

Answer 1

The data is not being retrieved because the format is wrong in your model, I've written the correct format below, see if this helps you.
Model
if($booking_id)
{
$this->db->select('*');
$this->db->from('booked');
$this->db->where('booking_id', $booking_id);
$alltrains=$this->db->get();
return $alltrains->result();
}