php-lpr/examples/printers.php

<?php

require_once __DIR__."/../vendor/autoload.php";

use NoccyLabs\Lpr\PrinterList;

$printers = new PrinterList();

foreach ($printers as $printer=>$meta) {
    printf("%s\n%s\n\n", $printer, json_encode($meta,JSON_PRETTY_PRINT));
}