how to search in Json and get sub data [duplicate] - php

Question

This question already has an answer here:
How to extract and access data from JSON with PHP?
(1 answer)
Closed 3 years ago.
i have a json file of users with all descriptions and its hard to find them with data[2]. imagine in data[0]->users->data i have 3 user and i want to find name = "Stafin" to get description->data->instagram and get value. i'll give you a simple json data
{"data":[
{
"id":1,
"category_name":"Writers",
"users":{
"data":[{
"name":"Steve",
"id":"1",
"description":{
"data":[
{
"instagram":"steveid"
}
]
}
},{
"name":"Stafin",
"id":"2",
"description":{
"data":[
{
"instagram":"stafinid"
}
]
}
},{
"name":"Sara",
"id":"3",
"description":{
"data":[
{
"instagram":"saraid"
}
]
}
}]
}
}
]}
Code:
<?php
$str = file_get_contents('http://localhost/json/test.json');
$json = json_decode($str, true);
function searchForId($id, $array) {
foreach ($array as $key => $val) {
if ($val['id'] === $id) {
return $key;
}
}
return null;
}
$id = searchForId('2', $json);
echo $id;
?>
note that: answer it in php language
sorry for my bad English language. if you didn't get that, just tell me to describe more

Answer 1

Your function searches for id, but you said you wanted to search for name. You can make the key another parameter of the function. Then you can use it to find the id in the data array, and the name in the users['data'] array.
function searchArray($searchkey, $searchval, $array) {
foreach ($array as $key => $val) {
if ($val[$searchkey] === $searchval) {
return $val;
}
}
return null;
}
foreach ($json['data'] as $data) {
$user = searchArray('name', 'Stafin', $data['users']['data']);
if ($user) {
echo "Found Stafin";
foreach ($user['description']['data'] as $desc) {
if (isset($desc['instagram'])) {
echo ", Instagram is {$desc['instagram']}";
break;
}
}
break;
}
}