Some code to reproduce bug:

> db.geo.insert(

{coords:[0,1], field: 1}

)
> db.geo.insert(

{coords:[2.3,1.4], field: 2}

)
> db.geo.insert(

{coords:[1,5], field: 0}

)
> db.geo.ensureIndex(

{coords: "2d"}

)

Then:

> db.geo.find({coords : {$near:[1,1]}})

{ "_id" : ObjectId("4fe1e02e033df621f3c59861"), "coords" : [ 0, 1 ], "field" : 1 } { "_id" : ObjectId("4fe1e037033df621f3c59862"), "coords" : [ 2.3, 1.4 ], "field" : 2 } { "_id" : ObjectId("4fe1e03f033df621f3c59863"), "coords" : [ 1, 5 ], "field" : 0 }

Seems ok!

> db.geo.find({coords : {$near:[1,1]}}).skip(1)

Bug?

> db.geo.find({coords : {$near:[1,1]}}).skip(1).limit(1)

{ "_id" : ObjectId("4fe1e037033df621f3c59862"), "coords" : [ 2.3, 1.4 ], "field" : 2 }

?!

Btw my php code doesn't work with limit() setted.