0

DB から次の形式でデータを取得しています。

Array
(
    [id] => 1
    [exerciseid] => 127
    [date] => 2013-06-12 00:00:00
    [time] => 40271
    [weight] => 
    [distance] => 1000
    [reps] => 
    [intensity] => 
)
Array
(
    [id] => 2
    [exerciseid] => 127
    [date] => 2013-06-12 00:00:00
    [time] => 120813
    [weight] => 
    [distance] => 1000
    [reps] => 
    [intensity] => 
)

ここで、これらの配列をマージして、executeid が一致する場合に多次元配列を作成したいと考えています。私はこれをやった：

Array
(
    [127] => Array
        (
            [1] => Array
                (
                    [time] => 40271
                    [weight] => 
                    [distance] => 1000
                    [reps] => 
                    [intensity] => 
                )

            [2] => Array
                (
                    [time] => 120813
                    [weight] => 
                    [distance] => 1000
                    [reps] => 
                    [intensity] => 
                )

        )

)

私の質問は、私が持っているものよりもこれを書くためのより良い方法はありますか?

    while($e = $db->fetch()) {
        foreach ($e as $key => $value) {

            if($key == 'id')
                $id = $value;

            else if($key == 'exerciseid')
                $exerciseid = $value;

            else if($key == 'time')
                $time = $value;

            else if($key == 'weight')
                $weight = $value;

            else if($key == 'distance')
                $distance = $value;

            else if($key == 'reps')
                $reps = $value;

            else if($key == 'intensity')
                $intensity = $value;

        }

        $a[$exerciseid][$id]['time'] = $time;
        $a[$exerciseid][$id]['weight'] = $weight;
        $a[$exerciseid][$id]['distance'] = $distance;
        $a[$exerciseid][$id]['reps'] = $reps;
        $a[$exerciseid][$id]['intensity'] = $intensity;

    }
4

4 に答える 4

1 
$a[$e['exerciseId']][$e['id']] = array_diff_key($e, array_flip(array('exerciseId', 'id', 'date')));

同じ配列を別の配列に割り当てる場合は、$a = $b.
一部の選択キーのみが必要な場合は、 を使用しますarray_intersect_key。
特定のキーを省略したい場合は、 を使用しますarray_diff_key。

于 2013-06-14T08:55:09.223 に答える
0

これを試して

function groupbyId(&$items,$group_by_key)
{        
    $newkey=0;
    $grouparr   = array();
    foreach ($items as $key => $val)
    {
          $grouparr[$val[$group_by_key]][$newkey]=$val; 
           $newkey++;       
    }  
    return $grouparr;  
}
$grouparr = groupbyId($items,"exerciseid");
print_r($grouparr);
于 2013-06-14T09:40:23.757 に答える
0 
while($e = $db->fetch()) {
    foreach(array('time','weight','distance','reps','intensity') as $k){
        $a[$e['exerciseid']][$e['id']][$k] = $e[$k];
    }
}
于 2013-06-14T08:57:13.657 に答える