Please, $status = true; issue

<?php
include 'list.php';

//the status variable represents true or false
//this allows us to make changes to what our script will display
//right at the top of the file
$status = true;
//we want to show a list of keys in a particular order, so we use this
$order = array();//we use an indexed array for this

if($status == 'all'){
    $order = array_keys($list);
}else{
    foreach ($list as $key => $item) {
        //we use a conditional statement to check the completion status
        if ($item['complete'] === $status) {
            //we add the key to our order array
            $order[] = $key;
        }
    }
}

//var_dump($order);
//var_dump($list);


echo '<table>';
echo '<tr>';
echo '<th>Title</th>';
echo '<th>Priority</th>';
echo '<th>Due Date</th>';
echo '<th>Completion</th>';
echo '</tr>';
//we use $id because this identifies the list item we are going to use
foreach ($order as $id) {
    echo '<tr>';
    echo '<td>' . $list[$id]['title'] . "</td>\n";
    echo '<td>' . $list[$id]['priority'] . "</td>\n";
    echo '<td>' . $list[$id]['due'] . "</td>\n";
    echo '<td>';
    if($list[$id]['complete']){
        echo 'Yes';
    }else{
        echo 'No';
    }
    echo "</td>\n";
    echo '</tr>';
}

echo '</table>';
 ?>