重新格式化Json到PHP中的geoJson（Laravel） [英] Reformatting Json to geoJson in PHP (Laravel)

问题描述

我有laravel输出以下内容：

  [
 {
id：3， 
lat：38.8978378，
lon：-77.0365123
}，
 {
id：4，
 lat：44.8，
lon：1.7
}，
 {
id：22，
lat：37.59046 ，
lon：-122.348994
} 
] 
  

我希望它是geoJson格式：

  {type：FeatureCollection，
特征：[
 {type：Feature，
geometry：{type：Point，coordinates：[lat，lon]}，
属性：{
name：value
} 
} 
] 
} 
  

我知道我需要某种循环。但我不知道如何在PHP中构造它。任何指导将不胜感激。试图构建一个地图应用程序，该应用程序可以在世界范围内显示数千个标记。我已经在考虑集群，但需要经过这个基本步骤。

谢谢！

解决方案

我修改了循环，排列有点不合适。如果有人感兴趣的话，把它变成一个函数：

$ p $ 函数geoJson（$ locales）
{
$ original_data = json_decode（$ locales，true）;
$ features = array（）;
$ b foreach（$ original_data as $ key => $ value）{
$ features [] = array（
'type'=>'Feature'，
'geometry'=> array（'type'=>'Point'，'coordinates'=> array（（float）$ value ['lat']，（float）$ value ['lon']）） ，
'properties'=> array（'name'=> $ value ['name']，'id'=> $ value ['id']），
）;
};

$ allfeatures = array（'type'=&'; FeatureCollection'，'features'=> $ features）;
返回json_encode（$ allfeatures，JSON_PRETTY_PRINT）;

}


I have laravel outputting the following:

[
{
"id": 3,
"lat": "38.8978378",
"lon": "-77.0365123"
},
{
"id": 4,
"lat": "44.8",
"lon": "1.7"
},
{
"id": 22,
"lat": "37.59046",
"lon": "-122.348994"
}
]

i would like it to be the geoJson format:

{ "type": "FeatureCollection",
    "features": [
      { "type": "Feature",
        "geometry": {"type": "Point", "coordinates": [lat, lon]},
        "properties": {
         "name": "value"
         }
       }    
      ]
  }

I know i need some sort of loop. But i'm not sure how to structure it in PHP. Any guidance would be greatly appreciated. Trying to build a map application that could have several thousand markers on a world view. I'm already thinking about clustering, but need to get past this basic step.

Thanks!

解决方案

I modified the loop, the arrangement was a bit off. And turned it into a function if anyone is interested:

function geoJson ($locales) 
    {
        $original_data = json_decode($locales, true);
        $features = array();

        foreach($original_data as $key => $value) { 
            $features[] = array(
                    'type' => 'Feature',
                    'geometry' => array('type' => 'Point', 'coordinates' => array((float)$value['lat'],(float)$value['lon'])),
                    'properties' => array('name' => $value['name'], 'id' => $value['id']),
                    );
            };   

        $allfeatures = array('type' => 'FeatureCollection', 'features' => $features);
        return json_encode($allfeatures, JSON_PRETTY_PRINT);

    }

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