php数据有关问题，

程序员文章站 2022-05-01 17:06:49

...

php数据问题，请教高手！
有这样一个数组：

Array
(
    [0] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 39.9289
            [longitude] => 116.3883
        )

    [1] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 42
            [longitude] => 43.5
        )

    [2] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 38.9122
            [longitude] => 121.6022
        )

    [3] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 40.5525
            [longitude] => -74.2915
        )

    [4] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 40.5525
            [longitude] => -74.2915
        )

    [5] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 38.9122
            [longitude] => 121.6022
        )

    [6] => Array
        (
            [time] => 1382060855000
            [day] => 2013-10-18
            [latitude] => 38.9122
            [longitude] => 121.6022
        )
)

里面的经纬度有重复的数据，想过滤掉重复数据，并且得到每一个相同经纬度的数量。最后得到的数组如下：

这个要怎么实现呢？

php 数组

分享到：
------解决方案--------------------

$ar = array (
  0 => 
  array (
    'time' => '1382060855000',
    'day' => '2013-10-18',
    'latitude' => '39.9289',
    'longitude' => '116.3883',
  ),
  1 => 
  array (
    'time' => '1382060855000',
    'day' => '2013-10-18',
    'latitude' => '42',
    'longitude' => '43.5',
  ),
  2 => 
  array (
    'time' => '1382060855000',
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