Issues with decoding json object - php

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
}

Related

How to get json property name with php

So here's the thing, I get this json from a url ( in my context i get it from a url, but let's say here I write my json in a variable :
$file = '[
{"status": "5.4.1","email": "dddddd#exelcia-it.com"},
{"status": "5.4.1",, "email": "sksksksk#exelcia-it.com"}
]'
Then I do $json = json_decode($file,true);
And I want to get all the emails so I do :
foreach ($json as $key => $value) {
echo $value["email"]. "<br>";
}
But what I also need, is to return something like that from the loop (only for one property):
"email = dddddd#exelcia-it.com".
So I need to also get the name of the property but I can't figure this out.
I tried
foreach($json as $key => $propName){
echo $key.'<br>';
}
But I just get the index (0,1,...), not what I want.
Thanks!
You have to loop each json row, this should works:
$file = '[{"status": "5.4.1","email": "dddddd#exelcia-it.com"},{"status": "5.4.1", "email": "sksksksk#exelcia-it.com"}]';
$json = json_decode($file,true);
foreach($json as $row)
{
foreach($row as $key => $value)
{
echo "<b>".$key."</b>".':'.$value.'<br>';
}
}
Use this loop to get key and value pairs together.
foreach($data as $row)
{
foreach($row as $key => $val)
{
echo $key . ': ' . $val;
echo '<br>';
}
}
Ok thanks that's what I needed !
For me I just need the email properties and values, so I do :
foreach($json as $row)
{
foreach($row as $key => $value)
{
if($key=='email'){
echo "<b>".$key."</b>".':'.$value.'<br>';
}
}
}
Awesome ! thanks !

get index of json key using php

I want to find index of key from json array similar to this question Get index of a key in json
but i need the solution using php.
here is my json (partial data)
{
"currentOver":{
"events":[]
},
"matchString":"",
"currentPlayer":5,
"previousOvers":[],
"innings":[],
"scorecards":[
{
"batting":{
"players":[
{"id":16447,"name":"Rahul Roy"},
{"id":12633,"name":"Sijal Thomas"},
{"id":16446,"name":"Mohammed Reza"},
{"id":16509,"name":"Asif Khan"},
{"id":12633,"name":"Koyel Dijesh"},
{"id":16468,"name":"Shahrook"},
{"id":64691,"name":"Shafiq"},
{"id":6518,"name":"Ubaidulah"}
]
}
}
]
}
and php
foreach ($read_json->scorecards->batting->players as $batsmen => $val) {
if($val == 5) { // if batsman index is 5 then display his name
$name = $batsmen->name;
echo "<div>$name</div>\n";
}
}
Please help me to solve this issue.Thanks in advance.
I think this would suffice your requirement
http://codepad.org/XQDCKAsB
Find the code sample below as well.
$json = '{"currentOver":{"events": []},"matchString":"","currentPlayer":5,"previousOvers":[],"innings":[],"scorecards":[{"batting":{"players":[{"id":16447,"name":"Rahul Roy"},{"id":12633,"name":"Sijal Thomas"},{"id":16446,"name":"Mohammed Reza"},{"id":16509,"name":"Asif Khan"},{"id":12633,"name":"Koyel Dijesh"},{"id":16468,"name":"Shahrook"},{"id":64691,"name":"Shafiq"},{"id":6518,"name":"Ubaidulah"}]}}]}';
$arr = json_decode($json);
echo '<pre>';
$currentPlayer = $arr->currentPlayer;
echo $arr->scorecards[0]->batting->players[$currentPlayer-1]->name;
Try this code.
$info = json_decode('json string');
$currentPlayer = $info->currentPlayer;
$batsman = $info->scorecards[0]->batting->players[$currentPlayer];
echo "<div>{$batsman->name}</div>\n";
Also, note that arrays in PHP are zero-based. If currentPlayer index in json data is based on 1 (rare case, but it exists sometimes) you will ned to use
$batsman = $info->scorecards[0]->batting->players[$currentPlayer - 1];
to get right item from array.
If you just want to fix your foreach
$read_json->scorecards->batting should become $read_json->scorecards[0]->batting
if($val == 5) should become if($batsmen == 5)
$name = $batsmen->name; should become $name = $val->name;
You need to use json_decode and array_keys for the array keys from the json.
$json = '{ "key1" : "watevr1", "key2" : "watevr2", "key3" : "watevr3" }';
$result = json_decode ($json, true);
$keys = array_keys($result);
print_r($keys); //Array ( [0] => key1 [1] => key2 [2] => key3 )
In Php, You can use the code below, if you wan to fix it using foreach loop
foreach($json->entries as $row)
{
foreach($row as $key => $val)
{
echo $key . ': ' . $val;
echo '<br>';
}
}
please have a look following code
$json=json_decode($data)->scorecards[0]->batting->players;
foreach ($json as $key => $value) {
if($key==5){
echo $value->name ;
}
}
You can do it using converting JSON string to Array
$json_str = '{
"currentOver":{
"events":[]
},
"matchString":"",
"currentPlayer":5,
"previousOvers":[],
"innings":[],
"scorecards":[
{
"batting":{
"players":[
{"id":16447,"name":"Rahul Roy"},
{"id":12633,"name":"Sijal Thomas"},
{"id":16446,"name":"Mohammed Reza"},
{"id":16509,"name":"Asif Khan"},
{"id":12633,"name":"Koyel Dijesh"},
{"id":16468,"name":"Shahrook"},
{"id":64691,"name":"Shafiq"},
{"id":6518,"name":"Ubaidulah"}
]
}
}
]
}';
Decode your JSON string using "json_decode" and you get array
$json_decode_str = json_decode($json_str, true);
Now using foreach you can do anything
if($json_decode_str['scorecards']){
foreach($json_decode_str['scorecards'] as $scorecard){
$player_index = 1;
if($scorecard['batting']['players']){
foreach($scorecard['batting']['players'] as $player){
if($player_index == 5){
echo $player['name'];
}
$player_index++;
}
}
}
}
Maybe this one help you :)

PHP - How to Loop through JSON array with fields starting with "$"

I have been trying to workout how to loop through and output the contents of a json file where field names start with "$" and keep getting an Undefined variable error message
Here is an example of the json file example (taken from https://mixpanel.com/help/reference/webhooks):
[
{
"$distinct_id":"13b20239a29335",
"$properties":{
"$region":"California",
"$email":"harry.q.bovik#andrew.cmu.edu",
"$last_name":"Bovik",
"$created":"2012-11-20T15:26:16",
"$country_code":"US",
"$first_name":"Harry",
"Referring Domain":"news.ycombinator.com",
"$city":"Los Angeles",
"Last Seen":"2012-11-20T15:26:17",
"Referring URL":"http://news.ycombinator.com/",
"$last_seen":"2012-11-20T15:26:19",
}
},
{
"$distinct_id":"13a00df8730412",
"$properties":{
"$region":"California",
"$email":"anna.lytics#mixpanel.com",
"$last_name":"Lytics",
"$created":"2012-11-20T15:25:38",
"$country_code":"US",
"$first_name":"Anna",
"Referring Domain":"www.quora.com",
"$city":"Mountain View",
"Last Seen":"2012-11-20T15:25:39",
"Referring URL":"http://www.quora.com/What-...",
"$last_seen":"2012-11-20T15:25:42",
}
}
]
I am testing with a static string just to try and get things working. Here is my test code...
<?php
$input = '[{"$distinct_id":"13b20239a29335","$properties":"dddd"}]';
$jsonObj = json_decode($input, true);
foreach ($jsonObj as $item) {
foreach ($item as $rec) {
echo '<br>';
$my_id = $rec->$distinct_id;
echo($my_id);
$my_id = $rec->$properties;
echo($my_id);
}
echo '<br>';
}
?>
Any help would be appreciated.
Noob!
UPDATE: Musa gave this example which works for the single level json:
foreach ($jsonObj as $item) {
echo '<br>';
$my_id = $item->{'$distinct_id'};
echo($my_id);
$my_id = $item->{'$properties'};
echo($my_id);
echo '<br>';
}
How can this then be adapted to read and output all elements of the bigger multi-level json file?
Use Curly bracket notation
$object->{'$property'};
Edit
foreach ($jsonObj as $item) {
echo '<br>';
$my_id = $item->{'$distinct_id'};
echo($my_id);
foreach ($item->{'$properties'} as $my_prop => $value){
echo("$my_prop => $value");
}
echo '<br>';
}
http://codepad.org/1cudZqlu
With the nested loop you're iterating the properties $distinct_id and $properties so $rec is actually a string and not an object.
Also your json is invalid as it has trailing , in the $properties field.

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/>';
}
}
}

How do I iterate through an stdObject's array?

Like in Java when you iterate a list, it's real easy, it's like: while(BLAH.hasNext()) { }, so how do I do that in PHP when I have an array within an stdObject that I want to iterate through each and every item?
I keep getting Catchable fatal error: Object of class stdClass could not be converted to string in /Applications/XAMPP/xamppfiles/htdocs/index.php on line 29
<?php
$apiUrl = 'https://api.quizlet.com/2.0/groups/44825?client_id=***BLOCKED FROM PUBLIC***&whitespace=1';
$curl = curl_init($apiUrl);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$json = curl_exec($curl);
if ($json) {
$data = json_decode($json);
echo "<h1>Sets from \"{$data->name}\"</h1>";
foreach ($data->sets as $key => $val) {
echo "$key: $val\n";
}
echo "</ul>";
var_dump($data);
}
?>
You can/should use foreach to iterate over every element of an array.
$foo = new stdClass;
$foo->arr = array('1','7','heaven','eleven');
foreach ($foo->arr as $val)
{
if (is_object($val)) var_dump($val);
else echo $val;
}
Note the line I added to var_dump sub-objects. The error you were initially getting was that the elements of your sets array were also objects, not strings as expected. If you only need to access certain elements of the set objects, you can access them using $val->property.
For example you have an object like
$obj = new stdClass;
$obj->foo = 'bar';
$obj->arr = array('key' => 'val', ...);
$array = (array) $obj;
now you can use foreach to iterate over array.
foreach($array as $prop) {
//now if you are not sure if it's an array or not
if(is_array($prop)) {
foreach($prop as $val)
//do stuff
}
else {
//do something else
}
}
The $val variable holds another object (of type stdClass) which contains the details for an individual "set". As you can see, since it generates an error, you cannot echo a stdClass object.
You can access the values inside each object using the object->property notation that you seems to be getting familiar with. For example.
foreach ($data->sets as $set) {
echo $set->title . " by " . $set->created_by . "<br>";
}
/*
An example of the JSON object for a single $set
Access these like $set->title and $set->term_count
{
"id": 8694763,
"url": "http:\/\/quizlet.com\/8694763\/wh-test-1-2-flash-cards\/",
"title": "WH Test 1 & 2",
"created_by": "GrayA",
"term_count": 42,
"created_date": 1323821510,
"modified_date": 1323821510,
"has_images": false,
"subjects": [
"history"
],
"visibility": "public",
"editable": "groups",
}
*/

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