Php 按月分离MySQL查询结果

形势

我有一个MySQL数据库表，其中包含许多日期

现在我需要从这个tableentries创建一个表，如下所示：

May        |          |
22.05.2014 | Person 1 | Person 2
23.05.2014 | Person 1 | Person 2

June       |          |
02.06.2014 | Person 1 | Person 2
25.06.2014 | Person 1 | Person 2

$entryarray = array();
$stmt="";//you statement here
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                      {   
   $date = $row['pp_date'];
   $month = date('m', strtotime($date));
   $entryarray[$month][] =$row['data1'];//populate your array by the required data indexed by the month
   $entryarray[$month][] =$row['data2'];
   $entryarray[$month][] =$row['data3'];
    }

foreach ($entryarray  as $key => $value) {
    print $key; //you will get the key of your array
    foreach ($value as $key => $value){print $value; }//the value of the required key
}

等等

代码

我现在正试图通过我的所有查询结果来创建一个循环。就在那里我卡住了

我有这样的经历：

May        |          |
22.05.2014 | Person 1 | Person 2
23.05.2014 | Person 1 | Person 2

June       |          |
02.06.2014 | Person 1 | Person 2
25.06.2014 | Person 1 | Person 2

$entryarray = array();
$stmt="";//you statement here
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                      {   
   $date = $row['pp_date'];
   $month = date('m', strtotime($date));
   $entryarray[$month][] =$row['data1'];//populate your array by the required data indexed by the month
   $entryarray[$month][] =$row['data2'];
   $entryarray[$month][] =$row['data3'];
    }

foreach ($entryarray  as $key => $value) {
    print $key; //you will get the key of your array
    foreach ($value as $key => $value){print $value; }//the value of the required key
}

在“while”（fetch assoc）循环中，我有以下内容：

while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
  $date = $row['pp_date'];
  $month = date('m', strtotime($date));

  $entryarray = array();

}

---

您可以看到，我首先将日期的月份保存到数组中。现在我不知道如何创建数组来保存数组中每个月的所有行，以便最终将结果输出到表中。

我假设您的表报告只保存一年。如果是这样，您可以将月份用作数组上的索引键

$table = array();
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
  $month = date('m', strtotime($row['pp_date']));
  if(!isset($table[$month]))
  {
     $table[$month] = array();
  }

  $table[$month][] = $row; //... add a table row
}

现在，您可以通过迭代数组的键来回显

$table

数组。它们将按创建顺序分组。这取决于您的SQL查询

foreach($table as $month=>$rows)
{
     echo $month;
     foreach($rows as $row)
     {
        print_r($row);
     }
}

---

您可以尝试以下方法：

May        |          |
22.05.2014 | Person 1 | Person 2
23.05.2014 | Person 1 | Person 2

June       |          |
02.06.2014 | Person 1 | Person 2
25.06.2014 | Person 1 | Person 2

$entryarray = array();
$stmt="";//you statement here
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                      {   
   $date = $row['pp_date'];
   $month = date('m', strtotime($date));
   $entryarray[$month][] =$row['data1'];//populate your array by the required data indexed by the month
   $entryarray[$month][] =$row['data2'];
   $entryarray[$month][] =$row['data3'];
    }

foreach ($entryarray  as $key => $value) {
    print $key; //you will get the key of your array
    foreach ($value as $key => $value){print $value; }//the value of the required key
}

然后，要获取数据，您可以执行以下操作：

May        |          |
22.05.2014 | Person 1 | Person 2
23.05.2014 | Person 1 | Person 2

June       |          |
02.06.2014 | Person 1 | Person 2
25.06.2014 | Person 1 | Person 2

$entryarray = array();
$stmt="";//you statement here
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                      {   
   $date = $row['pp_date'];
   $month = date('m', strtotime($date));
   $entryarray[$month][] =$row['data1'];//populate your array by the required data indexed by the month
   $entryarray[$month][] =$row['data2'];
   $entryarray[$month][] =$row['data3'];
    }

foreach ($entryarray  as $key => $value) {
    print $key; //you will get the key of your array
    foreach ($value as $key => $value){print $value; }//the value of the required key
}

---

显示查询时，您可能需要按天（datecol）、月（datecol）、年（datecol）分组。为什么每个月都需要表？可以使用datepart在查询中直接选择特定月份。