How to create JSON response in PHP file?

Question

I'd like to get JSON response on my second server with the domain example.com where the getit.php file contains:

$arr = array('antwort' => 'jo');

echo json_encode($arr);

Now when I try to get it with my first server:

$url = 'http://www.example.com/getit.php';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$antwort = curl_exec($ch);
curl_close($ch);

$antwort = json_decode($antwort);

    echo '<pre>';
    var_dump($antwort);
    echo '</pre>';

I get:

object(stdClass)#2 (1) {
  ["antwort"]=>
  string(4) "jo"
}

And not an normal array, how do I convert this to array?

I allready tried $antwort = json_decode(json_encode($antwort), True); but I only get a weird string with that?!

Possible duplicate of Why does the PHP function "json_decode" return an object? — patrick
– patrick, Commented Jul 8, 2016 at 19:39

Riccardo · Accepted Answer · 2016-07-08 19:34:07Z

2

JSON's definition is: JavaScript Object Notation. JavaScript arrays can only have numeric keys. Your array has string keys, therefore it MUST be encoded as a JavaScript OJBECT, which do allow string keys.

Tell json_decode() you want arrays instead:

$arr = json_decode($json, true);
                          ^^^^

as per the docs

Where how did you do your json_decode(json_encode($antwort))? The ONLY way that'd return a string is if you encoded the $antwort you'd gotten from curl_exec().

edited Jul 8, 2016 at 19:34

Riccardo

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answered Jul 8, 2016 at 14:26

Marc B

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4 Comments

RiggsFolly Over a year ago

@AnneSchwarz But why would you want an array over an object. Objects are even easier to deal with than arrays

Marc B Over a year ago

how so? objects are only easier if you actually have a true object with methods and whatnot. an object just to store some keys/values is essentially IDENTICAL to an array.

Eddy Unruh Over a year ago

Well I always worked with normal arrays and I think they are easier to read/handle

RiggsFolly Over a year ago

Haha I must admit I like the fact you have 2 less keystrokes to ref a property and the code looks cleaner. Anyway, arnt we supposed to be in an Obect Oriented World

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