从Google Elevation API获取PHP数组的值[重复]

Question

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• How do I extract data from JSON with PHP? 5 answers

I am developing a system to get values from gGoogle Api Elevation with PHP. I have it working and when I get the value it returns as String in this format:

{ "results" : [ { "elevation" : 914.033935546875, "location" : { "lat" : -25.4499861, "lng" : -49.2339611 }, "resolution" : 152.7032318115234 } ], "status" : "OK" }       

I want to get the value of the elevation in this result, can you help me to do this? thanks you.

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Answer 1

The string is in JSON format.

You can use json_decode to convert it to a PHP array.

$json_string = <<<JSON
{
  "results": [
    {
      "elevation": 914.033935546875,
      "location": {
        "lat": -25.4499861,
        "lng": -49.2339611
      },
      "resolution": 152.7032318115234
    }
  ],
  "status": "OK"
}
JSON;

$array = json_decode($json_string, TRUE);
echo $array['results'][0]['elevation'];

Output:

914.03393554688