Question

如何使数组内的元素数组再次爆炸。我有一个像这样的数组

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

结果。

Array
(
    [0] => 2017-04-15||KMTC_HOCHIMINH
    [1] => 2017-04-15||OOCL_NAGOYA
)

我期待这样，

Array
(
    [record] => 
       [1] 2017-04-15
       [2] KMTC_HOCHIMINH
    [record] => 
       [1] 2017-04-15
       [2] OOCL_NAGOYA
)

php处理数组的关键是这样的。请指教。

更新怎么样。

Array
(
[0] => Array
    (
        [date] => 2017-04-15
        [vessel] => KMTC_HOCHIMINH
    )

[1] => Array
    (
        [date] => 2017-04-15
        [vessel] => OOCL_NAGOYA
    )

)

Answer 1

如果需要，您可以使用array_walk()（或仅foreach）：

array_walk($pks, function(&$a) {
    $a = array_combine(['date', 'vessel'], explode('||', $a));
});

Foreach方法：

foreach($pks as $k => $v) {
    $pks[$k] = array_combine(['date', 'vessel'], explode('||', $v));
}

但是，每个数组的密钥都不会是record，因为多次使用相同的密钥是不可能的。

输出：

Array
(
    [0] => Array
        (
            [date] => 2017-04-15
            [vessel] => KMTC_HOCHIMINH
        )

    [1] => Array
        (
            [date] => 2017-04-15
            [vessel] => OOCL_NAGOYA
        )

)

奖金方法，因为我喜欢搞乱数组：

$pks = array_map('explode', array_fill(0, count($pks), '||'), $pks);

Answer 2

试试这个，检查 live demo

 db  num           date_a     date_m   date_c zip_b  zip_a
0   old HKK10032    2010-07-14  2010-07-26  NaT NaN NaN
1   old HKK10109    2011-07-14  2011-09-15  NaT NaN NaN
2   old HNN10167    2012-07-15  2012-08-09  NaT 177-003 NaN
3   old HKK10190    2013-07-15  2013-09-02  NaT NaN NaN
4   old HKK10251    2014-07-16  2014-05-02  NaT NaN NaN
5   old HKK10253    2015-07-16  2015-05-01  NaT NaN NaN
6   old HNN10275    2017-07-16  2017-07-18  2010-07-18  1070062 NaN
7   old HKK10282    2017-07-16  2017-08-16  NaT NaN NaN
8   old HKK10032    2010-07-14  2010-07-26  NaT NaN NaN
9   old HKK10109    2011-07-14  2011-09-15  NaT NaN NaN
....

结果

    2010  2011  2012  2013  2014  2015  2016  2017
1       0     1     0     1     0     2     1     0
2       0     0     0     0     0     0     0     0
3       0     0     1     0     0     2     0     0
4       0    16    14    47    37    37    26    31
5       0    18    11    29    29    24    16    23
6       0    13     8    31    33    24    16    32
7       0    14    31    25    17    21    24    70
8       0    16    25    14    21    27    35    59
9       0    16    10    22    16    31    54    42
10      0    15    11    22    37    48    53    29
11      0    13    10    39    43    41    28    36
12      0     5     7    51    44    30    34    24
13      0    10    13    65    17    30    32    48
14      0    15    26    22    27    31    25    85
15      0    22    22    38    31    30    36    71
16      0    22    19    41    36    33    50    41
17      0    14    19    32    34    43    55    27
18      0    12    17    32    54    37    22    32
19      0     7    14    76    41    32    24    36
20      1     7    22    55    34    30    39    57
21      0    14    39    50    28    26    31   100
22      0    20    32    28    35    30    45    80
23      0    18    19    46    26    31    59    52
24      0    12    20    33    47    59    45    51
25      0    16    22    55    49    48    47    40
26      0    13    17    77    43    40    45    50
27      0    18    33    70    37    39    45    85
28      0    17    34    59    36    46    58   111
29      0    23    27    53    36    39    70    91
30      0    28    37    55    45    52    82    77
..    ...   ...   ...   ...   ...   ...   ...   ...
337    19    37    53    40    38    27    55     0
338    29    18    61    25    34    33    69     0
339    18    13    21    27    34    52    54     0
340    17    14    38    33    44    48    48     0
341    14    15    22    48    43    36    38     0
342    13    10    28    49    35    31    36     0
343    12    21    62    33    23    31    43     0
344    20    37    45    29    31    41    45     0
345    15    26    50    19    27    47    76     0
346    24    22    29    27    36    63    71     0
347    16    14    38    43    41    51    33     0
348    13    19    46    52    38    49    34     0
349    22    19    42    46    30    50    49     0
350    17    28    75    54    42    40    42     0
351    22    41    61    34    44    36    44     0
352    23    34    55    42    37    57    79     0
353    30    34    51    45    38    65    81     0
354    25    32    49    57    43    59    61     0
355    22    29    64    50    53    66    62     0
356    24    34    62    54    46    64    66     0
357    19    39    76    47    49    74    79     0
358    29    33    63    44    46    51    83     0
359    28    24    53    38    55    49    82     0
360    26    35    58    46    42    66    63     0
361    27    35    73    32    38    72    70     0
362    21    27    64    42    41    60    66     0
363    23    28    52    47    44    39    61     0
364    16    16    40    27    17    32    67     0
365     0     1    31     0    14    13    38     0
366     0     0     1     0     0     0    17     0

[366 rows x 8 columns]

使数组中的元素爆炸

2 个答案: