关于一个数组的问题，重新组合

Question

php数组

Answer 1

$arr = array (
  0 => 
  array (
    'caseid' => '31',
    'name' => '张三',
    'shijian' => 
    array (
      0 => '8:00',
      1 => '18:00',
    ),
  ),
  1 => 
  array (
    'caseid' => '32',
    'name' => '李四',
    'shijian' => 
    array (
      0 => '8:00',
      1 => '12:00',
      2 => '18:00',
    ),
  ),
  2 => 
  array (
    'caseid' => '33',
    'name' => '王五',
    'shijian' => 
    array (
      0 => '8:00',
      1 => '12:00',
      2 => '18:00',
    ),
  ),
);foreach($arr as $item) {
  foreach($item['shijian'] as $t) {
    if(! isset($res[$t])) $res[$t] = array('time' => $t, 'detail' => array());
    $res[$t]['detail'][] = array('caseid' => $item['caseid'], 'casename' => $item['name']);
  }
}
array_multisort(array_map('strtotime', array_keys($res)), $res);
print_r(array_values($res));Array
(
    [0] => Array
        (
            [time] => 8:00
            [detail] => Array
                (
                    [0] => Array
                        (
                            [caseid] => 31
                            [casename] => 张三
                        )                    [1] => Array
                        (
                            [caseid] => 32
                            [casename] => 李四
                        )                    [2] => Array
                        (
                            [caseid] => 33
                            [casename] => 王五
                        )                )        )    [1] => Array
        (
            [time] => 12:00
            [detail] => Array
                (
                    [0] => Array
                        (
                            [caseid] => 32
                            [casename] => 李四
                        )                    [1] => Array
                        (
                            [caseid] => 33
                            [casename] => 王五
                        )                )        )    [2] => Array
        (
            [time] => 18:00
            [detail] => Array
                (
                    [0] => Array
                        (
                            [caseid] => 31
                            [casename] => 张三
                        )                    [1] => Array
                        (
                            [caseid] => 32
                            [casename] => 李四
                        )                    [2] => Array
                        (
                            [caseid] => 33
                            [casename] => 王五
                        )                )        ))

Answer 2

echo '<meta http-equiv="content-type" content="text/html; charset=utf-8">';$arr = array(
    array('caseid'=>31, 'name'=>'张三', 'shijian'=> array('8:00','18:00')),
    array('caseid'=>32, 'name'=>'李四', 'shijian'=> array('8:00','12:00','18:00')),
    array('caseid'=>33, 'name'=>'王五', 'shijian'=> array('8:00','12:00','18:00'))
);$result = array();
foreach($arr as $row){
    foreach($row['shijian'] as $shijian){
        $detail = array(
            'caseid' => $row['caseid'],
            'casename' => $row['name']
        );
        if(!isset($result[$shijian])){
            $result[$shijian]['time'] = $shijian;
            $result[$shijian]['detail'] = array();
        }
        array_push($result[$shijian]['detail'], $detail);
    }
}ksort($result, SORT_NUMERIC);
$result = array_values($result);echo '<pre>';
print_r($result);
echo '</pre>';