Question

我有一个数组想要更改用于不同目的的数据格式。以下代码中的示例有很多季节与链接＆amp;每个季节都有一年。所以我想在每年下索引这些数据。我目前的数组：

$infoArray =array( 
                array(
                    'season'=>'winter 2014', 
                    'link'=>'link1'
                    ),
                array(
                    'season'=>'summer 2013', 
                    'link'=>'link2'
                    ),
                array(
                    'season'=>'fall 2012', 
                    'link'=>'link3'
                    ),
                array(
                    'season'=>'summer 2014', 
                    'link'=>'link4'
                    ),
                array(
                    'season'=>'winter 2013', 
                    'link'=>'link5'
                    )
            );

所以现在我想让它像下面这样：

$dataArray =array( 
                '2014'=>array(
                                'winter'=>'link1', 
                                'summer'=>'link4'
                                ),
                '2013' =>array(
                                'summer'=>'link2', 
                                'winter'=>'link5'
                                ),
                '2012'=>array(
                                'fall'=>' link3', 
                                'link'=>'link3'
                                ),
                        );

我只是想用下面的代码找到解决问题的方法，但到目前为止还没有运气:(

$newArray =array();
$innerArray=array();

foreach ($infoArray as $info){
            $season = explode(" ", $info['season']);
            $seasonName = $season[0];
            $seasonYear = $season[1];


        if (array_key_exists($seasonYear, $newArray)) {
                    $newArray[$seasonYear][$seasonName]=$info['link'] ;
            }
        else {
            $innerArray[$seasonName] = $info['link'];
            $newArray[$seasonYear]=$innerArray ;
        }

}

我希望有人可以指出我哪里出错或者是更好的解决方案。

提前致谢。

Answer 1

你使它变得比它需要的更复杂。

实施例

$infoArray =array(
    array(
        'season'=>'winter 2014',
        'link'=>'link1'
    ),
    array(
        'season'=>'summer 2013',
        'link'=>'link2'
    ),
    array(
        'season'=>'fall 2012',
        'link'=>'link3'
    ),
    array(
        'season'=>'summer 2014',
        'link'=>'link4'
    ),
    array(
        'season'=>'winter 2013',
        'link'=>'link5'
    )
);

foreach ($infoArray as $element) {
    list($season, $year) = explode(' ', $element['season']);
    $dataArray[$year][$season] = $element['link'];
}

var_export($dataArray);

输出：

array (
  2014 => 
  array (
    'winter' => 'link1',
    'summer' => 'link4',
  ),
  2013 => 
  array (
    'summer' => 'link2',
    'winter' => 'link5',
  ),
  2012 => 
  array (
    'fall' => 'link3',
  ),
)

在PHP中重新格式化多维数组

1 个答案:

实施例

输出：