Retrieve a JSON from postman on PHP - php

Question

I am trying to retrieve a json from an api (and store as a variable), but I am unable to retrieve.
I am trying in all ways that postman and the web give to me.
I Am using laravel/homestead (ubuntu)
I am using laravel framework.
This way give me a HTTP Status 415 - Unsupported Media Type
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_PORT => "443",
CURLOPT_URL => "https://iescities.com:443/IESCities/api/data/query/268/sql?origin=original",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => "select * from wifi",
CURLOPT_HTTPHEADER => array(
"cache-control: no-cache",
"postman-token: 1471daf9-329d-e9b4-b144-0383850f4769"
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
I also try another way but I haven't http\Client class and I haven't idea of how install and/or link it.
$client = new http\Client;
$request = new http\Client\Request;
$body = new http\Message\Body;
$body->append('select * from wifi');
$request->setRequestUrl('https://iescities.com:443/IESCities/api/data/query/268/sql');
$request->setRequestMethod('POST');
$request->setBody($body);
$request->setQuery(new http\QueryString(array(
'origin' => 'original'
)));
$request->setHeaders(array(
'postman-token' => 'e854f317-fdcc-1888-0043-758a3d5e32ba',
'cache-control' => 'no-cache'
));
$client->enqueue($request)->send();
$response = $client->getResponse();
echo $response->getBody();
Lot of thanks and sorry for my ignorance.

Answer 1

From the IESCities manual:
Query must be sent in text/plain format.
So in the line you set the headers:
CURLOPT_HTTPHEADER => array(
"cache-control: no-cache",
"postman-token: 1471daf9-329d-e9b4-b144-0383850f4769"
),
You should put another key:
CURLOPT_HTTPHEADER => array(
"cache-control: no-cache",
"postman-token: 1471daf9-329d-e9b4-b144-0383850f4769",
"Content-Type: text/plain"
),
After doing this you should be able to query the API.

Answer 2

Have you tried decoding the JSON?
$response = curl_exec($curl);
$responseJSON = json_decode($response, true);
print_r($responseJSON);
If you JSON looks like:
{
"name": Susy,
"age": 22
}
You can pull the age by using echo $responseJSON["age"];