<?php

$weapons = ['fists', 'whip', 'gun'];
$opponentWeapon = $weapons[rand(0,2)];

if($opponentWeapon == $weapons[0]){
    $indyWeapon = $weapons[2];
} elseif($opponentWeapon == $weapons[1]){
    $indyWeapon = $weapons[0];
} else {
    $indyWeapon = $weapons[1];
}
echo 'Opponent uses ' . $opponentWeapon . ', ' . 'Indiana wins with ' . $indyWeapon ;

?>