创建从其他阵列

Question

与值的新阵列我有一个包含单个阵列，内容类似这样的数组（从数据库中拉）：

Array 
(
[0] => Array 
    (
     [date] => 2014-11 
     [time] => 2135 
     [name] => John 
    ) 

[1] => Array 
    (
     [date] => 2014-11 
     [time] => 5496 
     [name] => Adam 
    ) 

[2] => Array 
    (
     [date] => 2014-12 
     [time] => 1526 
     [name] => John 
    ) 

[3] => Array 
    (
     [date] => 2014-12 
     [time] => 5481 
     [name] => Adam 
    ) 
[4] => Array 
    (
     [date] => 2014-12 
     [time] => 3476 
     [name] => Lizzie 
    ) 
) 

我想要做的是建立一个新的多维基于前面的数组，数组的同月通过以下方式结合在一起的阵列：

Array 
(
[0] => Array 
    (
     [date] => 2014-11 
     [John] => 2135 
     [Adam] => 5496 
    ) 

[1] => Array 
    (
     [date] => 2014-12 
     [John] => 1526 
     [Adam] => 5481 
     [Lizzie] => 3476 
    ) 
) 

我也想看看不同的阵列功能，但根本无法得到关于如何实现我的身边这....

Answer 1

看看下面的代码片段。

$output = array(); // Where the output will be saved 

foreach ($input as $row) { // Need to process the original input array 

    $date = $row['date']; // Grouping by the date value, thus we use it as an index in an associative array 

    if (empty($output[$date])) { 
     $output[$date] = array('date' => $date); // Make sure the 'date' value is in the final output 
    } 

    $output[$date][$row['name']] = $row['time']; // Actual values, e.g., [Adam] => 5496 
} 

$output = array_values($output); // Removing original indexes from the associative array 

问题中所需的数组结构有点奇怪，但没有问题问。