PHP循环多维数组，但按日期、类型和总和类型分组？

我得到了一个数组，以简化每个数组所具有的

[0] => Array
(
[target_id]
[target_date]
[intensity_id]
[target_intensity] 
)
[1] => Array
(
[target_id]
[target_date]
[intensity_id]
[target_intensity] 
)

示例数据（原始数组是assoc数组）

现在我需要回显这些数据作为谷歌堆叠条形图的输入

所以我需要得到每个月的目标强度之和（一个强度在一个月内出现的次数），如下所示

date        bad good    excellent
2016 dec     0  1   1
2017 jan    0   1   0
2017 feb    1   2   0
2017 mrt    0   1   1
2017 may    3   0   1
2017 jun    0   1   0

我被困在这里了

$tmpArray = array(
    array('target_id' => 1829, 'target_date' => '2017-06-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 2013, 'target_date' => '2017-05-22', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2024, 'target_date' => '2017-05-18', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2029, 'target_date' => '2017-05-14', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2032, 'target_date' => '2017-05-10', 'intensity_id'=>3, 'target_intensity'=>'bad'),
    array('target_id' => 2329, 'target_date' => '2017-03-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 2629, 'target_date' => '2017-03-12', 'intensity_id'=>3, 'target_intensity'=>'excellent'),
    array('target_id' => 2830, 'target_date' => '2017-02-03', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 3829, 'target_date' => '2017-02-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 4029, 'target_date' => '2017-02-18', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 4039, 'target_date' => '2017-01-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 4049, 'target_date' => '2016-12-12', 'intensity_id'=>3, 'target_intensity'=>'excellent'),
    array('target_id' => 4056, 'target_date' => '2016-12-23', 'intensity_id'=>2, 'target_intensity'=>'good')
);

//echo $tmpArray[3]['target_date'];
//exit();
// should i first loop and order by month and then
//should i create 3 tmp arrays for bad, good and excellent


foreach ($tmpArray as $key => $values) {
    echo $values['target_date'] . '<br/>';
    //print_r ($values).'<br/>';
    foreach ($values as $key => $value) {
//        echo '<pre>';
        echo $key . ' - ' . $value . '<br/>';
//        echo '</pre>';
    }
    echo '<hr/>';
}

$tmpArray=array(
数组（'target_id'=>1829，'target_date'=>2017-06-23，'intensity_id'=>2，'target_intensity'=>good'），
数组（'target\u id'=>2013，'target\u date'=>2017-05-22，'intensity\u id'=>1，'target\u intensity'=>bad'），
数组（'target_id'=>2024，'target_date'=>2017-05-18，'intensity_id'=>1，'target_intensity'=>bad'），
数组（'target_id'=>2029，'target_date'=>2017-05-14，'intensity_id'=>1，'target_intensity'=>bad'），
数组（'target_id'=>2032，'target_date'=>2017-05-10，'intensity_id'=>3，'target_intensity'=>bad'），
数组（'target_id'=>2329，'target_date'=>2017-03-23，'intensity_id'=>2，'target_intensity'=>good'），
数组（'target_id'=>2629，'target_date'=>2017-03-12，'intensity_id'=>3，'target_intensity'=>'excellent'），
数组（'target_id'=>2830，'target_date'=>2017-02-03，'intensity_id'=>2，'target_intensity'=>good'），
数组（'target_id'=>3829，'target_date'=>2017-02-23，'intensity_id'=>2，'target_intensity'=>good'），
数组（'target_id'=>4029，'target_date'=>2017-02-18，'intensity_id'=>1，'target_intensity'=>bad'），
数组（'target_id'=>4039，'target_date'=>2017-01-23，'intensity_id'=>2，'target_intensity'=>good'），
数组（'target_id'=>4049，'target_date'=>2016-12-12，'intensity_id'=>3，'target_intensity'=>'excellent'），
数组（'target_id'=>4056，'target_date'=>2016-12-23，'intensity_id'=>2，'target_intensity'=>good'））
);
//echo$tmpArray[3][“目标日期]；
//退出（）；
//我应该先循环，然后按月订购吗
//我应该为坏、好和优秀创建3个tmp阵列吗
foreach（$tmpArray作为$key=>$value）{
echo$value['target_date'].
；
//打印（$values）。“
”；
foreach（$key=>$value的值）{
//回声'；
$tmpArray = array_map(function($target) {
    $target['target_date'] = substr($target['target_date'], 0, 7);
    return $target;
}, $tmpArray);

$finalData = array_reduce($tmpArray, function($carry, $target) {
    if(!isset($carry[$target['target_date']])) {
        $carry[$target['target_date']] = ['bad' => 0, 'good' => 0, 'excellent' => 0];
    }
    $carry[$target['target_date']][$target['target_intensity']]++;
    return $carry;
}, []);

回显$key.'-'.$value.
；
//回声'；
$tmpArray = array_map(function($target) {
    $target['target_date'] = substr($target['target_date'], 0, 7);
    return $target;
}, $tmpArray);

$finalData = array_reduce($tmpArray, function($carry, $target) {
    if(!isset($carry[$target['target_date']])) {
        $carry[$target['target_date']] = ['bad' => 0, 'good' => 0, 'excellent' => 0];
    }
    $carry[$target['target_date']][$target['target_intensity']]++;
    return $carry;
}, []);

}
回声“
”；
}

---

感谢任何帮助

基本上有两个步骤需要完成，按年/月对数据进行分组并计算实际总和。为了分组，您需要一个公共标识符（只需从输入中删除日期）。总和基本上是分组函数

<?php
$array = array(
    array('target_id' => 1829, 'target_date' => '2017-06-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 2013, 'target_date' => '2017-05-22', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2024, 'target_date' => '2017-05-18', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2029, 'target_date' => '2017-05-14', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 2032, 'target_date' => '2017-05-10', 'intensity_id'=>3, 'target_intensity'=>'bad'),
    array('target_id' => 2329, 'target_date' => '2017-03-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 2629, 'target_date' => '2017-03-12', 'intensity_id'=>3, 'target_intensity'=>'excellent'),
    array('target_id' => 2830, 'target_date' => '2017-02-03', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 3829, 'target_date' => '2017-02-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 4029, 'target_date' => '2017-02-18', 'intensity_id'=>1, 'target_intensity'=>'bad'),
    array('target_id' => 4039, 'target_date' => '2017-01-23', 'intensity_id'=>2, 'target_intensity'=>'good'),
    array('target_id' => 4049, 'target_date' => '2016-12-12', 'intensity_id'=>3, 'target_intensity'=>'excellent'),
    array('target_id' => 4056, 'target_date' => '2016-12-23', 'intensity_id'=>2, 'target_intensity'=>'good')
);

$output = [];
foreach($array as $value) {
    $year = date('Y', strtotime($value['target_date']));
    $month = date('M', strtotime($value['target_date']));

    if(empty($output[$year][$month]))
    $output[$year][$month] = ['bad' => 0, 'good' => 0, 'excellent' => 0];

    $output[$year][$month][$value['target_intensity']] += 1;
}

ksort($output);
ksort($output[$year]);

echo "<pre>";
print_r($output);

?>

---

希望这能对您有所帮助：这里我只是将结果分组以生成数组

2016年年

年

年年年年年年年年年年年年年年年年年年年年的强度只有

优秀

和好的强度，那么为什么