<?php
$a = ['krokodil', 'zalupa', 'syr'];
echo $a[$rk[0]] . PHP_EOL;
echo $a[$rk[1]] . PHP_EOL;
echo "$a[1]";
PD9waHAKCiRhID0gWydrcm9rb2RpbCcsICd6YWx1cGEnLCAnc3lyJ107CgokcmsgPSBhcnJheV9yYW5kKCRhLCAyKTsKCgplY2hvICRhWyRya1swXV0gLiBQSFBfRU9MOwplY2hvICRhWyRya1sxXV0gLiBQSFBfRU9MOwplY2hvICIkYVsxXSI7Cg==