php数据有关问题，-tutorial php-php.cn

php数据有关问题，

WBOY

Lepaskan： 2016-06-13 11:37:43

asal

1015 orang telah melayarinya

php数据问题，请教高手！
有这样一个数组：

Array<br />(<br />    [0] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 39.9289<br />            [longitude] => 116.3883<br />        )<br /><br />    [1] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 42<br />            [longitude] => 43.5<br />        )<br /><br />    [2] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 38.9122<br />            [longitude] => 121.6022<br />        )<br /><br />    [3] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 40.5525<br />            [longitude] => -74.2915<br />        )<br /><br />    [4] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 40.5525<br />            [longitude] => -74.2915<br />        )<br /><br />    [5] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 38.9122<br />            [longitude] => 121.6022<br />        )<br /><br />    [6] => Array<br />        (<br />            [time] => 1382060855000<br />            [day] => 2013-10-18<br />            [latitude] => 38.9122<br />            [longitude] => 121.6022<br />        )<br />)

Salin selepas log masuk

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：