PHP数组中的大括号

I want to build this JS to a PHP array:

title : 'Property',
image : '1-1-thmb.png',
type : 'For Sale',
price : '$price',
address : '$address',
bedrooms : '$bedrooms',
bathrooms : '$maxguests',
area : '$area',
position : {
    lat : $lat,
    lng : $lng
},
markerIcon : 'marker-green.png'

I tried normal PHP array with JSON_ENCODE and PRETTY PRINT, but I dont know how to show the 'position' part inside an array.

Could you please help me?

Thanks in advance,

Tibor

PHP >=5.4

[
    'title' => 'Property',
    'image' => '1-1-thmb.png',
    'type' => 'For Sale',
    'price' => '$price',
    'address' => '$address',
    'bedrooms' => '$bedrooms',
    'bathrooms' => '$maxguests',
    'area' => '$area',
    'position' => [
        'lat' => '$lat',
        'lng' => '$lng'
    ],
    'markerIcon' => 'marker-green.png'
]