How can method calls behind variable accesses in templates help in handling empty values or arrays more efficiently?

When handling empty values or arrays in templates, method calls behind variable accesses can help by allowing us to check for empty values or arrays directly within the template itself. This can help in displaying default values or handling empty arrays without having to perform these checks in the controller or before passing the data to the template.

<?php

// Example data with empty array
$data = [
    'name' => 'John Doe',
    'emails' => []
];

// Template with method calls behind variable accesses
echo 'Name: ' . ($data['name'] ?? 'Unknown'); // Output: Name: John Doe
echo 'Emails: ' . (count($data['emails']) > 0 ? implode(', ', $data['emails']) : 'No emails'); // Output: Emails: No emails