Question

假设我有这样的数组，我从数据库中得到：

 (
    [0] => Array
        (
            [hour] => 03
            [percentage] => 20
        )

    [1] => Array
        (
            [hour] => 04
            [percentage] => 40
        )

    [2] => Array
        (
            [hour] => 05
            [percentage] => 10
        )

    [3] => Array
        (
            [hour] => 07
            [percentage] => 12
        )

    [4] => Array
        (
            [hour] => 10
            [percentage] => 15
        )

    )

但我需要做的是如果数组中不存在小时，即1,2,6,8,9,11,12;我需要用我的百分比值0来推进数组即

(
        [0] => Array
            (
                [hour] => 01
                [percentage] => 0
            )

        [1] => Array
            (
                [hour] => 02
                [percentage] => 0
        )

    [2] => Array
        (
            [hour] => 03
            [percentage] => 20
        )
........
    [12] => Array
        (
            [hour] => 12
            [percentage] => 0
       )

有些人可以提供任何提示如何使用它。我需要检查一天中的每个小时。

Answer 1

必填：提供所有12小时的参赛作品。

Demonstration at eval.in

代码：

$source = Array(
            array('hour' => 04, 'percentage' => 40),
            array('hour' => 05, 'percentage' => 10),
            array('hour' => 07, 'percentage' => 10),
            array('hour' => 10, 'percentage' => 15),
          );


$allHours = array(); // add all empty entries, in the correct order
                     // note: Index starts at one not zero! It is easier

for ($hour = 1; $hour <= 12; $hour++) { 
    $allHours[$hour] = array( 'hour' => $hour,  'percentage' => 0);
}

// replace existing ones
foreach($source as $entry) {
    $hour = $entry['hour'];
    $allHours[$hour] = $entry;
}

print_r($allHours);

Answer 2

让$ hour＆amp; $ percent是新值

If (!array_search($hour,         array_column($myarray, 'hour'))) {
  $myarray[] = array ('hour' => $hour, 'percentage' => $percent);
}

Answer 3

我发布我的回答可能会对你有所帮助

for($i=1;$i<=12;$i++)
                {
                    if(!in_array( $i, array_column($data,'hour'))){
                       array_push($data,array('hour'=>$i,'percentage' =>     $percentage));
                    //$datas[] =array('hour'=>$hour,'percentage' =>         $percentage);
                    }

                }

如何检入数组multidimentional数组并添加如果不存在

3 个答案:

代码：