PHP MongoDB update nested array not working

I'm using mongoDB GIS and I have the following simple structure 

user {

name : "test",

location: {

                 type:point,

                 coordinates: [56.25454, 12.564564 ]

            }

}

I want to update the coordinates fields so I tried the followings: 

         $coordinates = array($x,$y);

 $collection->update(array("name" => $name), array('$set'=> array("location"=> array"coordinates"=> $new_coordinates)));     //  not working location object expected, location array not in correct format'

$collection->update(array("pseudo" => $pseudo), array('$set'=> array("location.coordinates"=> array("0"=>  $coordinates[0], "1"=>$coordinates[1] ) )));   // not working location object expected, location array not in correct format'

       $collection->update(array("pseudo" => $pseudo), array('$set'=> array("location.coordinates"=> array($coordinates) ))); // works but change the array structure, I get coordinates [ ["x ",  " y"] ] which is not accepable

I don't know if I missed something, I've passed the whole day to update a field Please help me figure out where is the problem???

Baraa Mohamad wrote:

> I'm using mongoDB GIS and I have the following simple structure
>
> user {
> name : "test",
>
> location: {
>                  type:point,
>                  coordinates: [56.25454, 12.564564 ]
>             }
> }
<snip>

>        $collection->update(array("pseudo" => $pseudo), array('$set'=>
> array("location.coordinates"=> array($coordinates) ))); // works but change
> the array structure, I get coordinates [ ["x ",  " y"] ] which is not
> accepable
I don't know where the x and y come from, but this is the correct
syntax. You do need to make sure that the first value is the *longitude*
and the second one the *lattitude*. I think you might have them the
wrong way around.