我会根据我的要求取得不同的结果。 我有一个由2名协调人员组成的“站”收集。

摘自Mongo Console:

> db.stops.find({loc:{$near: [-##.94248402000001,##.444653126]}}).limit(3)
{ "_id" : ObjectId("4e8e0e64597535e4cb0001bd"), "stop_id" : 873198944, "stop_name" : "STOP ONE", "loc" : [ -##.942535, ##.444538 ] }
{ "_id" : ObjectId("4e8e0e66597535e4cb001260"), "stop_id" : 1603800857, "stop_name" : "STOP TWO", "loc" : [ -##.94355, ##.444672 ] }
{ "_id" : ObjectId("4e8e0e66597535e4cb000bb7"), "stop_id" : 3659710794, "stop_name" : "STOP THREE", "loc" : [ -##.94355, ##.444672 ] }

我的购买力平价代码:

$mdb=new Mongo();
$result=$mdb->myapp->stops->find(array( loc =>array( $near =>array(floatval($this->userLongitude),floatval($this->userLatitude)))))->limit(3);

I m new to Mongo, but I m pretty sure that code is right. It returns values... just, the wrong ones. Here s what var_dump(iterator_to_array($result)); outputs:

array
     4e8e0e67597535e4cb002092  => 
        array
         stop_id  => float 373055431
         stop_name  => string  STOP A  (length=34)
         loc  => 
        array
            0 => float -##.937874
            1 => float ##.442722
     4e8e0e64597535e4cb00022d  => 
        array
         stop_id  => float 4245689695
         stop_name  => string  STOP B  (length=32)
         loc  => 
        array
            0 => float -##.937515
            1 => float ##.442692
     4e8e0e67597535e4cb0020af  => 
        array
         stop_id  => float 134217173
         stop_name  => string  STOP C  (length=21)
         loc  => 
        array
            0 => float -##.938965
            1 => float ##.443787

一切都采用[长期、灵活]的形式,如Mongo docs所言。 我不知道造成不同结果的原因,但也许我会把PHP的盘点推到底,而是收集了返回数据。 什么错误?

I ve stripped out the IDs for brevity and changed some of the data that shouldn t matter except for privacy (namely, the ## hide the degrees and the stop names are different— if it s critical to see those, I can edit it, but everything else is untouched.)

EDIT:Solved My code to filter/parse longitude and latitude was also truncating the co-ordinates to only two decimals places. When I used the console directly, there wasn t any truncation going on.