php 生成8位数唯一的激活码

时间：2022-01-04 14:54:05
 /**

    *生成激活码

    */

    function showGenerationActivationCode(){

    	#渠道类型id

    	$channel_id=$_POST['channel'];

    	#根据渠道id去查询渠道英文名称

        $channelInfo = load_mysql ( "channelInfo" );

        $_res=$channelInfo->getInfoById($channel_id);

        $en_name=$_res['en_name'];

    	#活动类型

    	$type=$_POST['active_type'];

    	#生成数量

    	$nub=$_POST['nub'];

    	#连接redis

		$redis=new Redis();

        $redis->connect('192.168.1.133',8899);

        #授权

        $redis->auth("XXXXXX");

         #存入数据

        for($i=0;$i<$nub;$i++){

	    	 #接受生成的激活码

	    	 $ActivationCode=$this->showunique_rand(10000000,99999999,1);

	    	 #生成code

	    	 $code=$this->showAlgorithm_ActivationCode($type,$channel_id,$ActivationCode);

	    	 #写入redis

             $redis->hmset('hash','code_hash',array('code'=>$code));

        }

        #写入redis

        $redis->hmset('hash', 'channel_hash', array($en_name=> $channel_id ));

        $this->PromptMsg = "生成成功！";

        $this->UrlJump = "./index.php?module=operation&action=ActivationCode&menuId=168";

		$this->promptMsg ();

    }

    /**

    *生成code算法

    *type:活动类型[取前三位]

    *channel_id:渠道id[取前三位,不足以0填充]

    *array_ActivationCode:激活码数组

    *code算法格式=活动类型+渠道id+array_ActivationCode;

    *return code的数组

    */

    function showAlgorithm_ActivationCode($type,$channel_id,$ActivationCode){

    	 #截取活动类型前位字符串

         $type=mb_substr($type,0,3,'utf-8');

         #渠道id[取前三位,不足左边以0填充]

         $channel_id=str_pad($channel_id,3,'0',STR_PAD_LEFT);

         #拼接code

         $code=$type.''.$channel_id.''.$ActivationCode;

         return  $code;

    }

    /**

    *生成8位数的激活码算法

    */

    function showunique_rand($min, $max, $num=1) {

       $count = 0;

       $return = array();

       while ($count < $num) {

        $return[] = mt_rand($min, $max);

        $return = array_flip(array_flip($return));

        $count = count($return);

      }

      return $return[0];

    }

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