PHP和MYSQLI循环遍历几个月

我试图检索每个月的数据（01,02,03等），但我不知道如何为它做一个循环。现在我每个月都有这个！（如果跳过了其他几个月，所以你不必看到全部）。PHP和MYSQLI循环遍历几个月

$queryJanuary = "SELECT count(*) AS num FROM unique_ip WHERE datum BETWEEN '2016-01-01' AND '2016-01-31'"; 
$queryFebruari = "SELECT count(*) AS num FROM unique_ip WHERE datum BETWEEN '2016-02-01' AND '2016-02-28'"; 


    if ($January = $Connection->query($queryJanuary)) { 
      $Februari = $Connection->query($queryFebruari); 

      $rowJanuari = mysqli_fetch_assoc($January); 
      $rowFebruari = mysqli_fetch_assoc($Februari); 

      $january = $rowJanuari['num']; 
      $februari = $rowFebruari['num']; 

    }else { 
     die(); 
      } 

     $data = array($january, $februari); 

    echo json_encode($data);

数据库方案：

IP unsigned int - 无PK
基准日期NOT NULL
告诉INT NOT NULL - 默认1
- 数据意味着日期
- 告诉手段计数

而且，它是方便或至少很好的做法，使查询的到预处理语句？此代码只会在只有我和其他管理员可以访问的私人页面上提供。

来源

2016-05-02 Koenman

显示你的表结构 –

@SunilPachlangia我加入它 – Koenman

-1

我真的不知道你是什么做的意图，只是试试这个为你的SQL：

$queryJanuary = "SELECT count(datum) AS num FROM unique_ip WHERE (datum>='2016-01-01' AND datum<='2016-01-31')"; 
$queryFebruari = "SELECT count(datum) AS num FROM unique_ip WHERE (datum>='2016-02-01' AND datum<='2016-02-28')"; 

$data   = array(); //INITIALIZE DATA TO AN EMPTY ARRAY... 
try{ 
    $January  = $Connection->query($queryJanuary); 
    $Februari = $Connection->query($queryFebruari); 

    $rowJanuari = mysqli_fetch_assoc($January); 
    $rowFebruari = mysqli_fetch_assoc($Februari); 

    $january  = $rowJanuari['num']; 
    $februari = $rowFebruari['num']; 
    $data  = array($january, $februari); 
}catch(Exception $e){ 
    //HANDLE YOUR EXCEPTION HERE... 
    die(); 
} 

echo json_encode($data);

你可以如做所有这些在一个SQL语句，像这样：

$queryAll  = "SELECT COUNT(datum) AS countJan, 
        (SELECT COUNT(datum) FROM unique_ip WHERE (datum>='2016-02-01' AND datum<='2016-02-28')) AS countFeb 
        FROM unique_ip AS af WHERE (datum>='2016-01-01' AND datum<='2016-01-31')"; 
$data   = array(); //INITIALIZE $data TO AN EMPTY ARRAY... 
$rowAll   = array(); //INITIALIZE $rowAll TO AN EMPTY ARRAY... 

try{ 
    $query  = $Connection->query($queryAll); 
    $rowAll  = mysqli_fetch_assoc($query); 
    $january  = $rowAll['countJan']; 
    $februari = $rowAll['countFeb']; 
    $data  = array($january, $februari); 
    // BUT YOU DON NOT NEED TO PUSH $january & $februari INTO THE $data ARRAY 
    // BECAUSE YOU HAVE THOSE VALUES ALREADY INSIDE THE $rowAll VARIABLE 
    // WHICH SHOULD CONTAIN THESE KEYS: "countJan" & "countFeb" 
}catch(Exception $e){ 
    //HANDLE YOUR EXCEPTION HERE... 
    die(); 
} 

//DUMP THE VALUES TO SEE IF THEY ARE WHAT YOU EXPECTED 
var_dump($data); 
var_dump(rowAll);

来源

2016-05-02 09:34:10 Poiz

我正在尝试检索我的网站每月访问的数量。数据库中充满了独特的IP地址，并附有访问日期。我正在计算每月唯一ip的总数并将它们添加到数组中 – Koenman

经过一些测试并尝试之后，我更喜欢你的方法！在我的眼睛里工作并且易于阅读更容易。 – Koenman

使用查询：

SELECT count(*) AS num, EXTRACT(YEAR_MONTH FROM datum) as yearmonth FROM unique_ip WHERE datum BETWEEN '2016-01-01' AND '2016-05-02' GROUP BY EXTRACT(YEAR_MONTH FROM datum) DESC";

这SQL会给你明智的一个月算..

来源

2016-05-02 09:15:14

谢谢你，你也知道把输出数组的最佳方式？ – Koenman

循环访问结果，并将yearmon作为数组的索引并将计数值指定为数组的值 –

解决了问题，谢谢您的回答 – Koenman

请尝试以下查询。这将有助于您在单个查询中统计所有月份。

$queryallmonth = "SELECT MONTHNAME(datum) Month,COUNT(ip) num FROM unique_ip GROUP BY DATE_FORMAT(datum, '%Y%m')"

来源

2016-05-02 13:49:57

PHP和MYSQLI循环遍历几个月

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