How can the output of PHP code be optimized for readability and simplicity when working with WordPress post data and custom fields?

When working with WordPress post data and custom fields, the output of PHP code can be optimized for readability and simplicity by using helper functions to retrieve and display the data. By encapsulating the logic in functions, the code becomes more modular and easier to maintain. Additionally, using proper indentation and comments can improve the overall readability of the code.

// Function to retrieve and display custom field data
function get_custom_field_data($field_name) {
    global $post;
    $custom_field_value = get_post_meta($post->ID, $field_name, true);
    return $custom_field_value;
}

// Example usage
$custom_field_value = get_custom_field_data('custom_field_name');
echo $custom_field_value;