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PHP+MYSQL+AJAX实现每日签到功能

2015-09-22 16:01 741 查看
一、web前端及ajax部分

文件index.html


<html> <head> <meta http-equiv=Content-Type content="text/html;charset=utf-8">

<title>PHP+AJAX+MYSQL实现每日签到</title>

<script type="text/javascript" src="js/jquery.min.js"></script>

<script type="text/javascript">

  //page load get num

  $(window).ready(function(){
    doGetDays();
  });

//get sign days

function doGetDays(){
  $.get("/sign.php?do=getDay",{},function(data){
    $("#days").html(data);
  });
}

//do sign

function doSign(){
  $.get("/sign.php?do=sign",{},function(data){
    if(data==1){
      alert("sign success!");
      window.location.href='/';
    }else if(data==2){
      alert("already sign today! next tomorrow!");
    }
});
}

</script>

</head>
<body>

<a style="cursor:pointer;" onclick="doSign();">签到<span>连续签到<span id="days"></span>天</span></a>

</body>
</html>


 

二、PHP后端处理部分


sign.php文件

<?php

if ($_GET['do']=='getDay'){

  $db=new mysqli('localhost','root','123456','sign');

  $uid=2; $getDay="SELECT `signdays` FROM `user` WHERE `id`= {$uid}"; $day=$db -> query($getDay); $days =$day -> fetch_array(MYSQLI_ASSOC); echo $days['signdays'];
}

if ($_GET['do']=='sign'){

  $db=new mysqli('localhost','root','123456','sign');

  $uid=2;

  $time=time();

  //check sign today

  $todayBegin=strtotime(date('Y-m-d')." 00:00:00");

  $todayEnd= strtotime(date('Y-m-d')." 23:59:59");

  $checkSignSql="SELECT * FROM `sign` WHERE `uid` = {$uid} AND `dateline` < {$todayEnd} AND `dateline` > {$todayBegin} ";

  $checkSignToday= $db -> query($checkSignSql);

  $checkSign = $checkSignToday -> fetch_array(MYSQLI_ASSOC);

  if (empty($checkSign)){

    $sql="SELECT * FROM `sign` WHERE `uid` = {$uid} ";

    $return = $db -> query($sql) -> fetch_array(MYSQL_ASSOC);

    //check sign table exist uid record

    if (empty($return)){//no

      $insertSql="INSERT INTO `sign` (`uid`,`dateline`) VALUES ('{$uid}','{$time}') ";

       $insert = $db -> query($insertSql);

       $updateSignSql="UPDATE `user` SET `signdays` =1 WHERE `id` = {$uid} ";

      $db -> query($updateSignSql); echo 1;
    }else{
      // check is continuous ? reset with login set signdays as 0 !!!!!

      $yesterdayBegin= strtotime(date("Y-m-d",strtotime("-1 day"))." 00:00:00");

      $yesterdayEnd= strtotime(date("Y-m-d",strtotime("-1 day"))." 23:59:59");

      $checkContinuSql="SELECT * FROM `sign` WHERE `uid` = {$uid} AND `dateline` < {$yesterdayEnd} AND `dateline` > {$yesterdayBegin}"; $checkContinuYesterday = $db ->query($checkContinuSql) -> fetch_array(MYSQL_ASSOC);          

      if (!empty($checkContinuYesterday)){            

        $replaceSql="REPLACE INTO `sign` (`uid`,`dateline`) VALUES ('{$uid}','{$time}') ";            

        $replace=$db -> query($replaceSql);

        $updateSignSql="UPDATE `user` SET `signdays` = `signdays` + 1 WHERE `id` = {$uid} ";

        $db -> query($updateSignSql); echo 1;

      }else{
          
    }
  }
}else{       

  echo 2;// allready sign.     

}

?>



三、Mysql数据库部分


CREATE TABLE IF NOT EXISTS `sign` (
`uid` int(11) NOT NULL,
`dateline` varchar(10) COLLATE utf8_bin NOT NULL, PRIMARY KEY (`uid`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

INSERT INTO `sign` (`uid`, `dateline`) VALUES (1, '1389072071'), (2, '1389072735');

CREATE TABLE IF NOT EXISTS `user` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'USERID',
`username` varchar(35) COLLATE utf8_bin NOT NULL COMMENT 'username',
`signdays` int(11) NOT NULL COMMENT '签到天数', PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=3 ;

INSERT INTO `user` (`id`, `username`, `signdays`) VALUES (1, 'ggbound', 4), (2, 'other', 1);  


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