having issues getting specific data in a json. im sure it's easy for those that use json more than i do

[wilsoc31]

[
    {
        "place_id": 329211526,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 19239538,
        "boundingbox": [
            "34.6786854",
            "34.6787122",
            "-77.5843465",
            "-77.5835107"
        ],
        "lat": "34.6787013",
        "lon": "-77.5840059",
        "display_name": "West Main Street, lex, Troy Township, BIGG County, Ohio, 44333, United States",
        "class": "highway",
        "type": "primary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329211743,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 38610646,
        "boundingbox": [
            "34.6787122",
            "34.6871188",
            "-77.603118",
            "-77.5843465"
        ],
        "lat": "34.6827021",
        "lon": "-77.5937807",
        "display_name": "West Main Street, lex, Troy Township, BIGG County, Ohio, 44333, United States",
        "class": "highway",
        "type": "secondary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329180475,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 823017968,
        "boundingbox": [
            "34.9201281",
            "34.9214493",
            "-81.1346294",
            "-81.1251686"
        ],
        "lat": "34.9208004",
        "lon": "-81.1297602",
        "display_name": "West Main Street, Alliance, lex Township, Stark County, Ohio, 44601, United States",
        "class": "highway",
        "type": "tertiary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329179580,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 19258266,
        "boundingbox": [
            "34.9095347",
            "34.9189094",
            "-81.1539336",
            "-81.134635"
        ],
        "lat": "34.9146373",
        "lon": "-81.1445334",
        "display_name": "West Main Street, Alliance, lex Township, Stark County, Ohio, 44601, United States",
        "class": "highway",
        "type": "unclassified",
        "importance": 0.6000099999999999
    }
]

all i want to do is get the values of "lat" and "lon" from the first section (inside the first "{ }" ).  so i can do:

$lat=34.6787013;

$lon=-77.5840059;

 

thanks for your help in advanced.  ive tried looking up objects ect..  im not even sure what they are.  is lat and lon objects ??

[gizmola]

Here you go:

$json = '[
    {
        "place_id": 329211526,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 19239538,
        "boundingbox": [
            "34.6786854",
            "34.6787122",
            "-77.5843465",
            "-77.5835107"
        ],
        "lat": "34.6787013",
        "lon": "-77.5840059",
        "display_name": "West Main Street, lex, Troy Township, BIGG County, Ohio, 44333, United States",
        "class": "highway",
        "type": "primary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329211743,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 38610646,
        "boundingbox": [
            "34.6787122",
            "34.6871188",
            "-77.603118",
            "-77.5843465"
        ],
        "lat": "34.6827021",
        "lon": "-77.5937807",
        "display_name": "West Main Street, lex, Troy Township, BIGG County, Ohio, 44333, United States",
        "class": "highway",
        "type": "secondary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329180475,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 823017968,
        "boundingbox": [
            "34.9201281",
            "34.9214493",
            "-81.1346294",
            "-81.1251686"
        ],
        "lat": "34.9208004",
        "lon": "-81.1297602",
        "display_name": "West Main Street, Alliance, lex Township, Stark County, Ohio, 44601, United States",
        "class": "highway",
        "type": "tertiary",
        "importance": 0.6000099999999999
    },
    {
        "place_id": 329179580,
        "licence": "Data © OpenStreetMap contributors, ODbL 1.0. https://osm.org/copyright",
        "osm_type": "way",
        "osm_id": 19258266,
        "boundingbox": [
            "34.9095347",
            "34.9189094",
            "-81.1539336",
            "-81.134635"
        ],
        "lat": "34.9146373",
        "lon": "-81.1445334",
        "display_name": "West Main Street, Alliance, lex Township, Stark County, Ohio, 44601, United States",
        "class": "highway",
        "type": "unclassified",
        "importance": 0.6000099999999999
    }
]';

$data = json_decode($json, true);

echo "latitude: {$data[0]['lat']} longitude: {$data[0]['lon']}";

 

Things to understand:

• json_decode can either create an array of php objects or a php array.  Choosing array typically is simpler.  Thus I passed true as the 2nd parameter to json_decode().
• Javascript arrays (as they can now be represented in php as well) are enclosed in square brackets.  [  ... this is an array of stuff ]
  • The first structure in the array will array key 0
  • In this case your data is an array of javascript objects (the "name": value pairs)
  • From there, all you need to do is reference the key value for the element you want.

Therefore you get $data[0]['lat'] for the first array element 'lat' key from the original json object.

[wilsoc31]

thank you so much for your help, i think the missing part i had was the ",true"  and i wasnt doing the decode right..