PHP iterate through sequental key values - php

Question

I am grabbing Pokemon data from a JSON API, that is showing values for any Pokemon. The aim here is to grab data that shows what games a Pokemon can be found in and which areas in the game they are found located.
https://pokeapi.co/api/v2/pokemon/183/
This is accessed via its encounters key value. I am particularly interested in accessing via :
['location_area']['name'] and ['version']['name']
As a good URL example: https://pokeapi.co/api/v2/pokemon/183/encounters
Problem is, the encounters array index value is a URL, which I am accessing through my own Curl json function, which works fine, but will only give me array numeric index values.
public function getPokemonLocation($searchTerm)
{
/*
Get the Pokemon via search term name
*/
$url = $this->baseUrl.$searchTerm;
$pokemonLocation = $this->getUrl($url);
/*
$pokemonLocationUrl is the encounters subset i the array URL
*/
$pokemonLocationUrl = $pokemonLocation['location_area_encounters'];
$pokemonLocationEncounters = $this->getUrl('https://pokeapi.co/' . $pokemonLocationUrl);
echo "<pre>";
print_r($pokemonLocationEncounters);
echo "</pre>";
/*
Now grab the data needed from the name of location and what game regions they are from
*/
$pokemonAreaEncounterArea = array();
$pokemonAreaEncounterGame = array();
foreach($pokemonLocationEncounters as $key => $encounter)
{
$pokemonAreaEncounterArea[] = $encounter['location_area']['name'];
$pokemonAreaEncounterGame[] = $encounter['version_details'][0]['version']['name'];
}
$pokemonLocationAndRegion = array_combine($pokemonAreaEncounterGame,$pokemonAreaEncounterArea);
// print_r($pokemonLocationAndRegion);
return $pokemonLocationAndRegion;
}
Problem is, the encounters array index value is a URL, which I am accessing through my own Curl json function, which works fine, but will only give me array numeric index values.
I can easily get data, as shown above . Howwever would like to fully access all of the array indexes, not just one or a handful of data. Tempting to do this via multiple foreach, but would rather implement it cleanly.
EDIT: Here is 2nd example of Poke APi link above, if you get a 504 server Error - https://jsoneditoronline.org/?id=73911ec678c850f9b1ff131ac7ee738c

Answer 1

According to your json which is returning an index based array, this is how your code should be to work.
public function getPokemonLocation($searchTerm) {
/*
Get the Pokemon via search term name
*/
$url = $this->baseUrl . $searchTerm;
$pokemonLocation = $this->getUrl($url);
/*
$pokemonLocationUrl is the encounters subset i the array URL
*/
$pokemonLocationUrl = $pokemonLocation['location_area_encounters'];
$pokemonLocationEncounters = $this->getUrl('https://pokeapi.co/' . $pokemonLocationUrl);
echo "<pre>";
print_r($pokemonLocationEncounters);
echo "</pre>";
$pokemonAreaEncounterArea = array();
$pokemonAreaEncounterGame = array();
/*
Now grab the data needed from the name of location and what game regions they are from
*/
for($i=0,$size=count($pokemonLocation);$i<$size;$i++) {
$pokemonAreaEncounterArea[] = $pokemonLocation[$i]['location_area']['name'];
$pokemonAreaEncounterGame[] = $pokemonLocation[$i]['version_details'][0]['version']['name'];
}
$pokemonLocationAndRegion = array_combine($pokemonAreaEncounterGame, $pokemonAreaEncounterArea);
// print_r($pokemonLocationAndRegion);
return $pokemonLocationAndRegion;
}
to make it clearer
for($i=0,$size=count($pokemonLocation);$i<$size;$i++) {
$pokemonAreaEncounterArea[] = $pokemonLocation[$i]['location_area']['name'];
$pokemonAreaEncounterGame[] = $pokemonLocation[$i]['version_details'][0]['version']['name'];
}
this will allow you to traverse all elements in the result array, and put them on the same index in respective arrays of $pokemonAreaEncounterArea and $pokemonAreaEncounterGame

Answer 2

You can combine the target data as you iterate like this:
$array=json_decode($json,true);
foreach($array as $item){
$result[$item['version_details'][0]['version']['name']]=$item['location_area']['name'];
}
var_export($result);
Output:
array (
'diamond' => 'great-marsh-area-6',
'platinum' => 'sinnoh-route-215-area',
'heartgold' => 'mt-mortar-1f',
'ruby' => 'hoenn-route-120-area',
'emerald' => 'hoenn-safari-zone-expansion-south',
'leafgreen' => 'four-island-area',
'black-2' => 'route-22-area',
'x' => 'kalos-route-3-area',
)