PHP多維陣列根據索引值合并。

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'frequency' => string '3' (length=1)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'frequency' => string '5' (length=1)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'frequency' => string '1' (length=1)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'frequency' => string '2' (length=1)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'frequency' => string '16' (length=2)

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'amount' => string '18.00' (length=5)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'amount' => string '54.00' (length=5)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'amount' => string '6.00' (length=4)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'amount' => string '12.00' (length=5)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'amount' => string '48.00' (length=5)      

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'number' => string '1' (length=1)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'number' => string '5' (length=1)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'number' => string '1' (length=1)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'number' => string '1' (length=1)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'number' => string '2' (length=1)  

有多個同樣格式的多維陣列,想根據time的值來進行合并成以下效果

請教各位大神該如何解決?

回複內容：

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'frequency' => string '3' (length=1)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'frequency' => string '5' (length=1)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'frequency' => string '1' (length=1)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'frequency' => string '2' (length=1)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'frequency' => string '16' (length=2)

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'amount' => string '18.00' (length=5)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'amount' => string '54.00' (length=5)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'amount' => string '6.00' (length=4)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'amount' => string '12.00' (length=5)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'amount' => string '48.00' (length=5)      

array (size=15)
0 =>

array (size=2)  'time' => string '2016-04-14' (length=10)  'number' => string '1' (length=1)

1 =>

array (size=2)  'time' => string '2016-04-22' (length=10)  'number' => string '5' (length=1)

2 =>

array (size=2)  'time' => string '2016-04-23' (length=10)  'number' => string '1' (length=1)

3 =>

array (size=2)  'time' => string '2016-04-24' (length=10)  'number' => string '1' (length=1)

4 =>

array (size=2)  'time' => string '2016-04-25' (length=10)  'number' => string '2' (length=1)  

有多個同樣格式的多維陣列,想根據time的值來進行合并成以下效果

請教各位大神該如何解決?

如果你的數組都已經按照time排好序, 並且長度相同的話.

$new_arr = [];foreach ($arr as $key=>$value) {    $new_arr[$key] = [        'time' => $arr[$key]['time'],        'frequency' => $arr[$key]['frequency'],        'other' => $arr2[$key]['other']    ];}

