<?php
function pick(int $mode) {
    $text = 'start';

    switch ($mode) {
        case 1:
            $text = $text . ':one';
            break;
        case 2:
            $text = $text . ':two';
            break;
        default:
            $text = $text . ':default';
            break;
    }

    return $text . "\n";
}

echo pick(1);
echo pick(2);
echo pick(9);
