PHP多維數組依鍵值合併。

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

有多個同樣格式的多維數組,想根據time的值來進行合併成以下效果

請教各位大神該如何解決?

回覆內容：

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

array (size=15)
0 =>

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

1 =>

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

2 =>

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

3 =>

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

4 =>

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

有多個同樣格式的多維數組,想根據time的值來進行合併成以下效果

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.

<code class="php">$new_arr = [];
foreach ($arr as $key=>$value) {
    $new_arr[$key] = [
        'time' => $arr[$key]['time'],
        'frequency' => $arr[$key]['frequency'],
        'other' => $arr2[$key]['other']
    ];
}</code>