php实现的中秋博饼游戏之掷骰子并输出结果功能详解

<?php
class roll
{
  private $_defRank = 'lk';
  public function lottery()
  {
    $dice   = $this->rollDice();
    $format  = $this->formatDice($dice);
    $rank   = $this->getRank($format);
    $rankName = $this->getName($rank);
    return [
      'dice'   => $dice,
      //'format'  => $format,
      'rank'   => $rank,
      'rankName' => $rankName,
    ];
  }
  /**
   * 获取筛子排名结果
   * @param $dice
   * @return array
   */
  public function getRes($dice)
  {
    $format  = $this->formatDice($dice);
    $rank   = $this->getRank($format);
    $rankName = $this->getName($rank);
    return [
      'dice'   => $dice,
      'format'  => $format,
      'rank'   => $rank,
      'rankName' => $rankName,
    ];
  }
  /**
   * 掷骰子
   * @return array
   */
  public function rollDice()
  {
    $res = [];
    for ($i = 0; $i < 6; $i++) {
      $res[] = mt_rand(1, 6);
    }
    return $res;
  }
  /**
   * 格式化掷骰子结果
   * @param array $list
   * @return array
   */
  public function formatDice($list = [])
  {
    $data = [];
    if (count($list) != 6) {
      return $data;
    }
    $data = [
      1 => 0,
      2 => 0,
      3 => 0,
      4 => 0,
      5 => 0,
      6 => 0,
    ];
    foreach ($list as $val) {
      if (isset($data[$val])) {
        $data[$val] += 1;
      }
    }
    foreach ($data as $key => $val) {
      if ($val == 0) {
        unset($data[$key]);
      }
    }
    return $data;
  }
  /**
   * 判断筛子结果的大小
   * @param $list
   * @return int|string
   */
  public function getRank($list)
  {
    $ruleList = $this->_getRule();
    $res   = $this->_defRank;
    if (!empty($ruleList)) {
      foreach ($ruleList as $rank => $rankRules) {
        foreach ($rankRules as $rule) {
          foreach ($rule as $dian => $num) {
            if (isset($list[$dian])) {
              if ($list[$dian] == $num) {
                $res = $rank;
              } else {
                //规则中只要有一条不满足就跳出当前规则验证
                $res = $this->_defRank;
                break;
              }
            } else {
              //规则中只要有一条不满足就跳出当前规则验证
              $res = $this->_defRank;
              break;
            }
          }
          //有一条规则匹配，跳出循环，
          if ($res != $this->_defRank) {
            break;
          }
        }
        //有一条规则匹配，跳出循环，
        if ($res != $this->_defRank) {
          break;
        }
      }
    }
    return $res;
  }
  /**
   * 根据排序获取掷骰子结果名称
   * @param int $rank
   * @return array
   */
  public function getName($rank = NULL)
  {
    $list = [
      'cjh'  => '状元插金花',
      'lbh'  => '六杯红',
      'bdj'  => '遍地锦',
      'ww'  => '五王',
      'wzdyx' => '五子带一秀',
      'wzdk' => '五子登科',
      'zy'  => '状元',
      'by'  => '榜眼',
      'sh'  => '三红',
      'sj'  => '四进',
      'eq'  => '二举',
      'yx'  => '一秀',
      'lk'  => '轮空',
    ];
    if (!empty($rank)) {
      $rankName = '';
      if (isset($list[$rank])) {
        $rankName = $list[$rank];
      }
      return $rankName;
    }
    return $list;
  }
  /**
   * 返回规则
   * @return array
   */
  private function _getRule()
  {
    return [
      'cjh'  => [
        [2 => 2, 4 => 4]
      ],
      'lbh'  => [
        [4 => 6]
      ],
      'bdj'  => [
        [1 => 6],
        [2 => 6],
        [3 => 6],
        [5 => 6],
        [6 => 6],
      ],
      'ww'  => [
        [4 => 5],
      ],
      'wzdyx' => [
        [1 => 5, 4 => 1],
        [2 => 5, 4 => 1],
        [3 => 5, 4 => 1],
        [5 => 5, 4 => 1],
        [6 => 5, 4 => 1],
      ],
      'wzdk' => [
        [1 => 5],
        [2 => 5],
        [3 => 5],
        [5 => 5],
        [6 => 5],
      ],
      'zy'  => [
        [4 => 4]
      ],
      'by'  => [
        [1 => 1, 2 => 1, 3 => 1, 4 => 1, 5 => 1, 6 => 1]
      ],
      'sh'  => [
        [4 => 3]
      ],
      'sj'  => [
        [1 => 4],
        [2 => 4],
        [3 => 4],
        [5 => 4],
        [6 => 4],
      ],
      'eq'  => [
        [4 => 2]
      ],
      'yx'  => [
        [4 => 1]
      ],
    ];
  }
}
$roll = new roll();
$res = $roll->lottery();
echo '<h2>骰子点数：</h2>';
echo '<p>';
foreach($res['dice'] as $val){
  echo '<img src="img.php?num='.$val.'" >';
}
echo '</p>';
echo '<h2>结果：</h2>';
echo '<h2 style="color:red;">'.$res['rankName'].'</h2>';