How to filter through this properly? - php

Question

I am wondering how to filter through a result like this properly. What I am doing results in problems. Obviously using a foreach on an array with a single item is not ideal but I don't know exactly how to do it any other way.
// connect with the static file
$json = file_get_contents('resources/assets/datafeeds/brewery_single.json');
$obj = json_decode($json, true);
// create brewery info
foreach($obj['pages'] as $brewery) {
foreach($brewery['results'] as $brewery) {
}
}
I've tried doing something like:
foreach($obj['pages']['results'] as $brewery) {
}
But I get an Undefined index: result errror like this.
Example data with only one result block, my data has multiple:
{
"apiName": "brewery_single",
"apiGuid": "d74e8aa2-4064-44b9-81de-2ceb150882c0",
"generatedAt": 1452761620,
"pages": [
{
"pageUrl": "http://www.brewery-website.com",
"results": [
{
"website": "www.brewery.com/",
"plaats": "Place",
"latlong": [
"53.657856",
"5.032597"
],
"naam": "Brouwerij title",
"provincie": "Noord Brabant",
"afbeelding": "http://www.brewery.com/images/brewery/brewer.jpg",
"actief": "Yes",
"land": "Netherlands",
"adres": "<p><b>Adres:</b><br />Street 40 <br />2388 GP<br /> Province, Netherlands </p>",
"opgericht": "1990"
}
]
},
]
}
Hopefully somebody can help me out so I can properly get my data from an api.

Answer 1

It seems like pages is an array of potentially multiple pages, each of which contains a results array of potentially multiple results. So indeed, two loops are in order:
foreach ($obj['pages'] as $page) {
foreach ($page['results'] as $brewery) {
...
}
}
If you're only ever interested in the first result, you can try to directly access it:
if (isset($obj['pages'][0]['results'][0])) {
echo $obj['pages'][0]['results'][0]['plaats'];
}
But again, the point of this data structure appears to be to account for multiple results, so you may be missing out on some information if you only ever consider the first.
Consult the documentation (which hopefully exists) of that API for exact details on the returned data.

Answer 2

Add an extra check to see if the data that you want is in the array:
if (isset($obj['pages'])) {
foreach($obj['pages'] as $brewery) {
if (isset($brewery['results'])) {
foreach($brewery['results'] as $brewery) {
}
}
}
}

Answer 3

There is syntax error in your code near ['results]
Change from
foreach($obj['pages']['results] as $brewery) {
into
foreach($obj['pages']['results'] as $brewery) {
There is no multiple arrays in results array. So why you need foreach there?
Anyways you can get value of results by providing exact INDEX.
For example: echo $obj['pages']['results]['website'];