Specifying fields in API using PHP - php

Question

I have the following code which works;
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api.nutritionix.com/v1_1/search");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
"appId=id&appKey=key&query=milk");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec ($ch);
curl_close ($ch);
print_r($response);
?>
Question is, how do i specify fields to be outputted in the results?
I have tried, "appId=id&appKey=key&query=milk&fields=item_name, nf_calories" but to no avail..
Any help appreciated. Thanks.

Answer 1

Simply adding a question mark in between should do the trick really:
https://api.nutritionix.com/v1_1/search?appId=id&appKey=key&query=milk&fields=item_name
And so on for the field names.
I've generally used this approach when using curl, you can take a look at it if you want:
function curl_get_contents($url)
{
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
$data = curl_exec($curl);
curl_close($curl);
return $data;
}
function getUrl()
{
$url = "https://api.nutritionix.com/v1_1/search?appId=id&appKey=key&query=milk&fields=item_name";
return $url;
}
function getData()
{
$i = 0;
$url = getUrl();
$response = curl_get_contents($url);
$data = json_decode($response);
if(!isset($data->data))
{
die("no data.");
}
$data = $data->data;
return $data;
}
EDIT: Try an url like this:
https://api.nutritionix.com/v1_1/search/milk?results=0:20&fields=item_name,brand_name,item_id,nf_calories&appId=APPID&appKey=APPKEY