php模拟实现斗地主发牌

<?php
wash_card();
function wash_card(){
  $tmp = $arr = array(
    0=>'大王',1=>'小王',
    2=>'方片2',3=>'梅花2',4=>'红心2',5=>'黑桃2',
    6=>'方片A',7=>'梅花A',8=>'红心A',9=>'黑桃A',
    10=>'方片K',11=>'梅花K',12=>'红心K',13=>'黑桃K',
    14=>'方片Q',15=>'梅花Q',16=>'红心Q',17=>'黑桃Q',
    18=>'方片J',19=>'梅花J',20=>'红心J',21=>'黑桃J',
    22=>'方片10',23=>'梅花10',24=>'红心10',25=>'黑桃10',
    26=>'方片9',27=>'梅花9',28=>'红心9',29=>'黑桃9',
    30=>'方片8',31=>'梅花8',32=>'红心8',33=>'黑桃8',
    34=>'方片7',35=>'梅花7',36=>'红心7',37=>'黑桃7',
    38=>'方片6',39=>'梅花6',40=>'红心6',41=>'黑桃6',
    42=>'方片5',43=>'梅花5',44=>'红心5',45=>'黑桃5',
    46=>'方片4',47=>'梅花4',48=>'红心4',49=>'黑桃4',
    50=>'方片3',51=>'梅花3',52=>'红心3',53=>'黑桃3',
  );
  
 
  foreach($arr as $k=>$v){
    $index = rand(0,54 - $k -1);
    $key = array_search($tmp[$index], $arr); 
    $cards[$key] = $tmp[$index];
    unset($tmp[$index]);
    $tmp = array_values($tmp);
  }
  
  $landowner = array(0=>'用户一',1=>'用户二',2=>'用户三');
  $lk = rand(0,2);
  echo '本轮地主: '.$landowner[$lk].'<br >';
  
  $card['landwehr']['cards'] = array_slice($cards, 0, 3, true); 
  ksort($card['landwehr']['cards']);
  echo '地主: '.implode(' ',$card['landwehr']['cards']).'<br >';
  
  $card['user1']['cards'] = array_slice($cards, 3, 17, true); 
  ksort($card['user1']['cards']);
  echo '用户一: '.implode(' ',$card['user1']['cards']).'<br >';
  
  $card['user2']['cards'] =array_slice($cards, 20, 17, true); 
  ksort($card['user2']['cards']);
  echo '用户二: '.implode(' ',$card['user2']['cards']).'<br >';
  
 
  $card['user3']['cards'] = array_slice($cards, 37, 17, true); 
  ksort($card['user3']['cards']);
  echo '用户三: '.implode(' ',$card['user3']['cards']).'<br >';
}
 
 
?>