Loop through JSON arrays using PHP [duplicate] - php

Question

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How to extract and access data from JSON with PHP?
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Closed 4 years ago.
I'm trying to loop through an array of moves for a Pokemon website. I'm using the API PokeApi (https://pokeapi.co/).
My question is how can I access the moves in these arrays using plain PHP.
I've tried using this just to call 1 move. But I don't know how to access data that's in arrays. Like "move->version-group-details".
$base = "https://pokeapi.co/api/v2/pokemon/";
$id = 1;
$data = file_get_contents($base.$id."/");
$pokemon = json_decode($data);
echo $pokemon->moves[0];
Thanks in advance :)

Answer 1

So you have two methods here you can do so when I run
$base = "https://pokeapi.co/api/v2/pokemon/";
$id = 1;
$data = file_get_contents($base.$id."/");
$pokemon = json_decode($data);
print_r($pokemon->moves[0]);
I get the result:
stdClass Object
(
[move] => stdClass Object
(
[name] => razor-wind
[url] => https://pokeapi.co/api/v2/move/13/
)
[version_group_details] => Array
(
[0] => stdClass Object
(
[level_learned_at] => 0
[move_learn_method] => stdClass Object
(
[name] => egg
[url] => https://pokeapi.co/api/v2/move-learn-method/2/
)
[version_group] => stdClass Object
(
[name] => crystal
[url] => https://pokeapi.co/api/v2/version-group/4/
)
)
[1] => stdClass Object
(
[level_learned_at] => 0
[move_learn_method] => stdClass Object
(
[name] => egg
[url] => https://pokeapi.co/api/v2/move-learn-method/2/
)
[version_group] => stdClass Object
(
[name] => gold-silver
[url] => https://pokeapi.co/api/v2/version-group/3/
)
)
)
)
If you want to access a moves name you will have to run $pokemon->moves[0]->move->name since we are getting an object returned. If you want to get the name inside the move_learn_method of version_group_details you will have to run
$pokemon->moves[0]->version_group_details[0]-> move_learn_method->name
Alternatively, if you want to return all arrays instead of objects just run this
$base = "https://pokeapi.co/api/v2/pokemon/";
$id = 1;
$data = file_get_contents($base.$id."/");
$pokemon = json_decode($data, true);
print_r($pokemon['moves'][0]);
This will now return
Array
(
[move] => Array
(
[name] => razor-wind
[url] => https://pokeapi.co/api/v2/move/13/
)
[version_group_details] => Array
(
[0] => Array
(
[level_learned_at] => 0
[move_learn_method] => Array
(
[name] => egg
[url] => https://pokeapi.co/api/v2/move-learn-method/2/
)
[version_group] => Array
(
[name] => crystal
[url] => https://pokeapi.co/api/v2/version-group/4/
)
)
[1] => Array
(
[level_learned_at] => 0
[move_learn_method] => Array
(
[name] => egg
[url] => https://pokeapi.co/api/v2/move-learn-method/2/
)
[version_group] => Array
(
[name] => gold-silver
[url] => https://pokeapi.co/api/v2/version-group/3/
)
)
)
)
So instead of having to use the object accessor -> you can access the data by using array notation so instead of
$pokemon->moves[0]->version_group_details[0]-> move_learn_method->name
you can now use:
$pokemon['moves']['version_group_details'][0]['move_learn_method']['name']
Hope that helped.