PHP数组复杂排序 [英] PHP Array Complex Sort

问题描述

我已经生成了一个复杂的数组，我正在尝试按['file_date']对其进行排序.下降.在这里:

I have a complex array that has been generated and I'm trying to sort it by ['file_date']. Descending. Here it is:

Array ( 
    ['images'] => Array ( 
        ['93-1138446.jpg'] => Array ( 
            ['file_title'] => '93-1138446', 
            ['file_path'] => 'gallery-images-1435/93-1138446.jpg', 
            ['thumb_path'] => 'resources/cache/275x275-75-d3cc92863d4f10bb6cf733159689a0e660fe5847df52beb531fa45b584876f0b.jpg', 
            ['file_date'] => '1497471649'
        ),
        ['93-8315415.jpg'] => Array ( 
            ['file_title'] => '93-8315415', 
            ['file_path'] => 'gallery-images-1435/93-8315415.jpg', 
            ['thumb_path'] => 'resources/cache/275x275-75-76a8495b1514b8385f090381edf21f64a6c71d2f15c14e0eadabbfce2824fe9a.jpg', 
            ['file_date'] => '1497471650'
        ),
        ['94-1234.jpg'] => Array ( 
            ['file_title'] => '94-1234', 
            ['file_path'] => 'gallery-images-1435/94-1234.jpg', 
            ['thumb_path'] => 'resources/cache/275x275-75-6e20bd7f6644db1c0fa36600d2aa298b6a5d11e578113f9015fd90dc6b7390e5.jpg', 
            ['file_date'] => '1497470721'
        )
    )
);

谢谢.

推荐答案

您可以使用实时演示

usort($array['images'], function($a, $b){return $b['file_date'] - $a['file_date'];});
print_r($array);

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