JSON array into php variable

Question

ARRAY: https://api.twitch.tv/kraken/search/games?q=League%20of%20Legends&type=suggest

Greetings! I am trying to get a value within an array. What i'm trying to go for is the large box art of a certain game. So how do I do this? Here is my attempt, but I am getting these errors.

Notice: Trying to get property of non-object in /???/test.php on line 4

Notice: Trying to get property of non-object in /???/test.php on line 4

Notice: Trying to get property of non-object in /???/test.php on line 4

<?php
$game = urlencode($_GET['game']); // This is "League of Legends" in the URL
$json_array = json_decode(file_get_contents('https://api.twitch.tv/kraken/search/games?q={$game}&type=suggest'), true);
echo "IMG: ". $json_array->games[0]->box->large; // line 4

yep since PHP is stating the issue is on line 4 and you've only shown 3 lines we have to ask if you can show line 4 in your file :) I also suggest that you sanitize and ensure that the value of $_GET['game'] is proper. You can do that in many different ways depending on the content that's required for that variable... For instance it it's a string validate that it is a string, etc. — Joseph Crawford
– Joseph Crawford, Commented Jun 17, 2015 at 1:02
You've passed true as the 2nd arg to json_decode which forces it to create an associative array instead of an object. You want something like $json_array['games'][0]['box']['large']. Or simply don't pass a 2nd arg — Phil
– Phil, Commented Jun 17, 2015 at 1:03
@JosephCrawford $_GET values are always strings. I'd also say passing it through urlencode() is safe enough — Phil
– Phil, Commented Jun 17, 2015 at 1:07
You should use double quotes in the file_get_contents function, otherwise the $game variable is not going to be replaced. — Alvaro Flaño Larrondo
– Alvaro Flaño Larrondo, Commented Jun 17, 2015 at 1:27

hakki · Accepted Answer · 2015-06-17 02:39:02Z

1

You should first get your content. You wasn't get content before. Below line returns $json_array correctly.

$json_array=json_decode(file_get_contents('https://api.twitch.tv/kraken/search/games?q='.$game.'&type=suggest'), true);

Then edit your second line like below

echo "IMG: ". $json_array['games'][0]['box']['large'];

So your final and working code like this:

$game = urlencode($_GET['game']); // This is "League of Legends" in the URL
$json_array = json_decode(file_get_contents('https://api.twitch.tv/kraken/search/games?q='.$game.'&type=suggest'), true);

echo "IMG: ". $json_array['games'][0]['box']['large'];

It absolutely works, I tried and get

IMG: http://static-cdn.jtvnw.net/ttv-boxart/League%20of%20Legends-272x380.jpg

as output

edited Jun 17, 2015 at 2:39

answered Jun 17, 2015 at 1:42

hakki

1

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Comments

Kedar B · Accepted Answer · 2015-06-17 02:47:00Z

0

This error simply says that $json_array is an array not an object. You have to access object element with -> and array elements with []. If $json_array is array then you have to access it's elements with

$json_array['games']

And if $json_array is object then you have to access it's elements with

  $json_array->games

answered Jun 17, 2015 at 2:47

Kedar B

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