looping over all elements in JSON response PHP - php

After making a cURL call, I get a JSON response back as follows, already decoded as a string.
{
"AAPL": {
"fundamental": {
"symbol": "AAPL",
"high52": 229.67,
"low52": 149.16,
}
}
If I want to loop over all elements in 'fundamental,' what would be the best loop to use for this in PHP? I have tried the foreach method, but I was getting an illegal character use message.
I also get the error:
Undefined property: stdClass::$fundamental when trying:
$json_new = json_decode($json);
echo $json_new->fundamental;
The current foreach:
foreach ($json_new as $val){
echo $val->fundamental;
}

Step-1: decode JSON to array
$arr = json_decode($json, true);
Step-2: loop
foreach ($arr['AAPL']['fundamental'] as $key => $val) {
echo $key . ' = ' . $val . PHP_EOL;
}

Related

creating one loop for parsing json data

So I would like to create just one loop to parse the json data i have. I can successfully parse it in 2 foreach loops however when trying to combine in one loop using $key => $value the $key returns nothing when called. How can I successfully take the 2 foreach loops I have here and combine them into one?
$contents = file_get_contents($url);
$results = json_decode($contents, true);
$jsonList = $results['genres'];
foreach($jsonList as $key) {
$GenreID = $key['id'].'<br>';
echo $GenreID;
}
foreach($jsonList as $key => $value) {
$GenreName = $value['name'].'<br><br>';
echo $GenreName;
}
The json data is as follows:
{"genres":[{"id":28,"name":"Action"},{"id":12,"name":"Adventure"},{"id":16,"name":"Animation"},{"id":35,"name":"Comedy"},{"id":80,"name":"Crime"},{"id":99,"name":"Documentary"},{"id":18,"name":"Drama"},{"id":10751,"name":"Family"},{"id":14,"name":"Fantasy"},{"id":36,"name":"History"},{"id":27,"name":"Horror"},{"id":10402,"name":"Music"},{"id":9648,"name":"Mystery"},{"id":10749,"name":"Romance"},{"id":878,"name":"Science Fiction"},{"id":10770,"name":"TV Movie"},{"id":53,"name":"Thriller"},{"id":10752,"name":"War"},{"id":37,"name":"Western"}]}
You can still use $key as an index when also extracting the $value.
However note that you shouldn't be assigning the line breaks to your variables, and should instead consider them part of the view by echoing them out independently:
$contents = file_get_contents($url);
$results = json_decode($contents, true);
$jsonList = $results['genres'];
foreach($jsonList as $key => $value) {
$GenreID = $key['id']; // Depending on structure, you may need $value['id'];
$GenreName = $value['name'];
echo $GenreID . '<br>';
echo $GenreName . '<br><br>';
}
Your single loop below here.
foreach($jsonList as $key)
{
$GenreID = $key['id'].'<br>';
echo $GenreID;
$GenreName = $value['name'].'<br><br>';
echo $GenreName;
}
$key is a assosative array.Therefore it had some index.So you can use this index in single loop.
It seems you get confused over your data structure. Seeing the json, the resulting "$jsonlist" supposed to contain array with id and value as keys.
You can iterate over it and extract the the appropriate key.
Myabe something like this:
foreach($jsonlist as $value) {
echo "id: " . $value['id'] . "\n";
echo "name: " . $value['name'] . "\n";
}
extra bonus, if you want to create 1 level array from your json based on id with the name you could try array reduce using anon function like this:
$jsonlist = array_reduce($jsonlist, function($result, $item){
$result[$item['id']] = $item['name'];
return $result;
}, []);
extra neat for transformation of static structure data.

Printing json data

I have this json "https://www.decodethis.com/webservices/decodes/1Fmzu64p5yzb76700/aYcBzLfMCRs_JScq_sZt/0.json"
and I decode it with $data = json_decode($json, true);
But when I try to print the Vehicle part foreach($data['vehicle'][0] as $p)
{echo $p;}
the system prints"Invalid argument supplied for foreach()" and "Undefined index".
I'm a newbie, so forgive me.
Edit:This worked very well foreach ($data['decode']['vehicle'][0] as $p) echo $p;, but now I wonder if I can know the key or index of the element $p on every loop, as example "body>driveline>engine>id"...
the path is like these;
foreach ($data['decode']['vehicle'][0] as $p) echo $p;
You may want to to use:
$json = file_get_contents("https://www.decodethis.com/webservices/decodes/1Fmzu64p5yzb76700/aYcBzLfMCRs_JScq_sZt/0.json");
$obj = json_decode($json, true);
foreach($obj["decode"]["vehicle"] as $vehicle )
{
echo $vehicle['body'];
echo $vehicle['engine'];
# etc...
}
For accessing output in json file there is decode as root key. So first access decode key then after use vehicle information.
Below is code for that:
$data = json_decode($json, true);
$json = $data["decode"]["vehicle"][0];
foreach($json->entries as $row) {
foreach($row as $key => $val) {
echo $key . ': ' . $val;
echo '<br>';
}
}

Issues with decoding json object

Thanks for your time in reading this post.
My php file is receiving a json object. But I am facing issues while decoding it.
My php code:
$data=$_POST['arg1'];
echo $data;
$json = json_decode($data,true);
echo $json;
$i = 1;
foreach($json as $key => $value) {
print "<h3>Name".$i." : " . $value . "</h3>";
$i++;
}
When I echo data results as below.
{
"SCI-2": {
"quantity": 2,
"id": "SCI-2",
"price": 280,
"cid": "ARTCOTSB"
}
}
When I echo $json, result is as it follows :
Array
Name1 : Array.
Please assist as i need tho access the cid and quantity values in the $data.
json_decode returns an array. And to print array you can use print_r or var_dump.
Now to access your values you can try :
$json["SCI-2"]["quantity"] for quantity and $json["SCI-2"]["cid"] for cid.
Demo : https://eval.in/522350
To access in foreach you need this :
foreach($json as $k) {
foreach($k as $key => $value) {
print "<h3>Name".$i." : " . $value . "</h3>";
}
}
Since you do not know the number of items in your object, use this:
$obj = json_decode($json);
After this, iterate the $obj variable and after that, inside the loop, use the foreach to get each property.
foreach($iteratedObject as $key => $value) {
//your stuff
}

PHP - Getting array element from Json

I'm working with the JSON here: http://steamcommunity.com/id/mitch8910/inventory/json/730/2/
I'm trying to get the tags[{"name":""}] part of it. For example, I would want the 'container', from '"name":"Container"'
This is my code here:
$data = file_get_contents('http://steamcommunity.com/id/mitch8910/inventory/json/730/2/');
$json = json_decode($data);
foreach ($json->rgDescriptions as $mydata)
{
echo $mydata->tags[1];
}
tags[] is an array, though I did tags[1], I don't awlays want the '1'th element because the position of "name" could change in the array for different elements, I just did this to test, but I got an error. I have tried multiple ways with multiple errors, that why I'm not posting all the error code.
The simplest way may be to do an extra loop to grab all the name elements:
$data = file_get_contents('http://steamcommunity.com/id/mitch8910/inventory/json/730/2/');
$json = json_decode($data);
foreach ($json->rgDescriptions as $mydata)
{
foreach($mydata->tags as $tag) {
echo $tag->name;
}
}
or to get the first name of each tag group:
foreach ($json->rgDescriptions as $mydata)
{
echo $mydata->tags[0]->name;
}
I updated the whole answer:
$json = json_decode($data, true);
if (isset($json['rgDescriptions']) && is_array($json['rgDescriptions'])){
foreach ($json['rgDescriptions'] as $array_no => $value) {
if (isset($json['rgDescriptions'][$array_no]['tags'])){
echo "{$array_no}::::";
foreach ($json['rgDescriptions'][$array_no]['tags'] as $k => $value) {
if (isset($json['rgDescriptions'][$array_no]['tags'][$k]['name'])){
echo "{$json['rgDescriptions'][$array_no]['tags'][$k]['name']},";
}
}
echo "<br />";
}
}
}

Get data from JSON file with PHP [duplicate]

This question already has answers here:
How to loop through PHP object with dynamic keys [duplicate]
(16 answers)
Closed 4 years ago.
I'm trying to get data from the following JSON file using PHP. I specifically want "temperatureMin" and "temperatureMax".
It's probably really simple, but I have no idea how to do this. I'm stuck on what to do after file_get_contents("file.json"). Some help would be greatly appreciated!
{
"daily": {
"summary": "No precipitation for the week; temperatures rising to 6° on Tuesday.",
"icon": "clear-day",
"data": [
{
"time": 1383458400,
"summary": "Mostly cloudy throughout the day.",
"icon": "partly-cloudy-day",
"sunriseTime": 1383491266,
"sunsetTime": 1383523844,
"temperatureMin": -3.46,
"temperatureMinTime": 1383544800,
"temperatureMax": -1.12,
"temperatureMaxTime": 1383458400,
}
]
}
}
Get the content of the JSON file using file_get_contents():
$str = file_get_contents('http://example.com/example.json/');
Now decode the JSON using json_decode():
$json = json_decode($str, true); // decode the JSON into an associative array
You have an associative array containing all the information. To figure out how to access the values you need, you can do the following:
echo '<pre>' . print_r($json, true) . '</pre>';
This will print out the contents of the array in a nice readable format. Note that the second parameter is set to true in order to let print_r() know that the output should be returned (rather than just printed to screen). Then, you access the elements you want, like so:
$temperatureMin = $json['daily']['data'][0]['temperatureMin'];
$temperatureMax = $json['daily']['data'][0]['temperatureMax'];
Or loop through the array however you wish:
foreach ($json['daily']['data'] as $field => $value) {
// Use $field and $value here
}
Demo!
Use json_decode to transform your JSON into a PHP array. Example:
$json = '{"a":"b"}';
$array = json_decode($json, true);
echo $array['a']; // b
Try:
$data = file_get_contents ("file.json");
$json = json_decode($data, true);
foreach ($json as $key => $value) {
if (!is_array($value)) {
echo $key . '=>' . $value . '<br/>';
} else {
foreach ($value as $key => $val) {
echo $key . '=>' . $val . '<br/>';
}
}
}

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