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php Get JSON from URL – Twitter API

There is an API that result is for example like this:

// 20190920173100
//api.opencagedata.com/geoc

{
  "documentation": "https://opencagedata.com/api",
  "licenses": [
    {
      "name": "see attribution guide",
      "url": "https://opencagedata.com/credits"
    }
  ],
  "rate": {
    "limit": 2500,
    "remaining": 2493,
    "reset": 1569024000
  },
  "results": [
    {
      "bounds": {
        "northeast": {
          "lat": 51.9528202,
          "lng": 7.6325938
        },
        "southwest": {
          "lat": 51.9525445,
          "lng": 7.6323594
        }
      },
      "components": {
        "ISO_3166-1_alpha-2": "DE",
        "ISO_3166-1_alpha-3": "DEU",
        "_type": "building",
        "city": "Münster",
        "city_district": "Münster-Mitte",
        "continent": "Europe",
        "country": "Germany",
        "country_code": "de",
        "county": "Münster",
        "house_number": "7",
        "neighbourhood": "Josef",
        "political_union": "European Union",
        "postcode": "48153",
        "road": "Friedrich-Ebert-Straße",
        "state": "North Rhine-Westphalia",
        "state_district": "Regierungsbezirk Münster",
        "suburb": "Innenstadtring"
      },
      "confidence": 10,
      "formatted": "Friedrich-Ebert-Straße 7, 48153 Münster, Germany",
      "geometry": {
        "lat": 51.9526599,
        "lng": 7.632473
      }
    }
  ],
  "status": {
    "code": 200,
    "message": "OK"
  },
  "stay_informed": {
    "blog": "https://blog.opencagedata.com",
    "twitter": "https://twitter.com/opencagedata"
  },
  "thanks": "For using an OpenCage API",
  "timestamp": {
    "created_http": "Fri, 20 Sep 2019 13:01:02 GMT",
    "created_unix": 1568984462
  },
  "total_results": 1
}

I want to use the above data.

I tried the following code:

$adress  = json_decode(file_get_contents("https://api...."));

$detail = $adress ->rate->limit;

and it is ok

The problem is when I use this code to get results data it is null for example 

$adress  = json_decode(file_get_contents("https://api...."));

$detail = $adress ->result>formatted;

I guess that it is because of the object and array

Tags:

2

Answers


  1. 0

    $results is an array, so you have to do : $detail = $adress ->results[0]->formatted;

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  2. 0

    Don’t use file_get_contents function (This function reads entire file into a string)

    Because a URL can be used as a filename with this function if the fopen wrappers have been enabled only as described here. That is because sometimes this is closed (depending on your host, like shared hosting) and because of that, your application will not work.

    So my best suggestion is to use curl() (Client URL)

    So according to your case you are requesting data from the API. So, we can use the GET method to request data with curl() as follows with some headers,

    $curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://api....",
  CURLOPT_RETURNTRANSFER => true, // To get actual result from the successful operation
  CURLOPT_TIMEOUT => 30, // Set maximum time the request is allowed to take (in seconds)
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, // Specify HTTP protocol version to use
  CURLOPT_CUSTOMREQUEST => "GET", // Here the request method
  CURLOPT_HTTPHEADER => array( // Set custom HTTP headers
    "cache-control: no-cache"
  ),
));

$response = curl_exec($curl); // Here you will get the response after executing
$error = curl_error($curl); // Return a string containing the last error for the current session

curl_close($curl); // Close the cURL session

    So now the response comes back in a JSON object. Now you can use json_decode() to put this into a usable object or array as you already did this.

    $response = json_decode($response, true); // Because of true, it's in an array

    As will already answered in his answer, unlike rate, the results object is an array containing your data. So you have to change your result to results[0] in order to read the formatted data.

    $detail = $response->results[0]->formatted;
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