I can't extract data from json that I got from an api.
I tried for hours, tried all kinds of formats. Read Stackoverflow threads like How do I extract data from JSON with PHP?, but I can't see what I am doing wrong.
This is the code so far:
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results, true);
// Some variations I tried:
var_dump($results->status[1]);
var_dump($results->data[1]->opening_price);
var_dump($results["data"][1]["opening_price"]);
End result: NULL NULL NULL
What am I doing wrong?
Thanks for the answers! I will upvote the working ones. Seems I got confused in the formating!
<?php
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results, true);
print_r($results['status']);
echo "</br>";
print_r($results['data']['opening_price']);
Try access your array that way.
The output is :
0000
6998000
Keep an eye for the nested arrays. You need to access their parent array first in order to get their values.
Have you read the documentation of json_decode() (or, at least, the accepted answer of the question you linked)? If you pass TRUE as the second argument to json_decode() (and there is no decent reason to not pass it) then it decodes the JSON to associative arrays and not objects.
The elements in a PHP array can be accessed using the square bracket syntax.
A simple call to print_r($results) tells its structure:
Array
(
[status] => 0000
[data] => Array
(
[opening_price] => 6998000
[closing_price] => 7270000
[min_price] => 6750000
[max_price] => 7997000
[average_price] => 7188302.5804
[units_traded] => 78484.9241002
[volume_1day] => 78484.9241002
[volume_7day] => 335611.84181738
[buy_price] => 7268000
[sell_price] => 7274000
[date] => 1510563513031
)
)
Now, accessing its items is a piece of cake:
echo($results['status']);
# 0000
echo($results['data']['opening_price']);
# 6998000
Remove true from json_decode so you will have object result like Demo
$results = json_decode($api_results);
var_dump($results->status);
var_dump($results->data->opening_price);
When you use json_decode with true the returned objects will be converted into associative arrays.
Use this code like i think work it fine..
<?php
$api_results = '{"status":"0000","data":{"opening_price":"6998000","closing_price":"7270000","min_price":"6750000","max_price":"7997000","average_price":"7188302.5804","units_traded":"78484.9241002","volume_1day":"78484.9241002","volume_7day":"335611.84181738","buy_price":"7268000","sell_price":"7274000","date":"1510563513031"}}';
$results = json_decode($api_results);
print_r($results);
var_dump($results->status);
$var = $results->data;
var_dump($var->opening_price);
?>
stdClass Object
(
[status] => 0000
[data] => stdClass Object
(
[opening_price] => 6998000
[closing_price] => 7270000
[min_price] => 6750000
[max_price] => 7997000
[average_price] => 7188302.5804
[units_traded] => 78484.9241002
[volume_1day] => 78484.9241002
[volume_7day] => 335611.84181738
[buy_price] => 7268000
[sell_price] => 7274000
[date] => 1510563513031
)
)
string(4) "0000"
string(7) "6998000"
Remove true from json_decode and try something like this:
var_dump($results->status);
var_dump($results->data->opening_price);
If you see {} it is refering to objects and [] indicates that it is an array. You're trying to show everything as if they were arrays
You have set the second parameter of json_decode() to true. that means the json will be converted to an array so you are not able to access the data using pointer -> (because it is not an object).
You may access the data like this:
var_dump($results['status'][0]);
var_dump($results['data'][0]['opening_price']);
P.S: Try var_dump($results) to see the exact data, so you know how to access each attribute.
I've experienced a problem when developing for a minecraft server: I have an array like this which is received as json and encoded but for processing the output of this I need to know how to access the array and echo one of the values for Example the Version Key.I tried to save the array as variable $json and to access it via echo $json->Version; but this results in the output of this error: Notice: Trying to get property of non-object in /home/bs-web/joomla/api/test2.php on line 12
Here´s the Array:
Array
(
[0] => stdClass Object
(
[GameName] => MINECRAFT
[Version] => 1.8
[Plugins] =>
[Map] => BungeeCord_Proxy
[Players] => 7
[MaxPlayers] => 100
[HostPort] => 25565
[HostIp] => 188.40.97.86
[Software] => Vanilla
)
)
Your variable $json is an array, you cannot get property of an array. Assuming you have only one element in the array as in your example, you should use
echo $json[0]->Version;
to display the version(1.8 in your example).
once you saves the $json variable as an array, you only can access its values passing the key that you want to use, and then, point to the object. In your case, to get the Version property, you will need to use $json[0]->Version.
To access and echo all values of your object you can use a foreach loop to iterate with it.
foreach ($json as $object){
echo $object->GameName;
echo $object->Version;
echo $object->Plugins;
.... // All properties that you want
}
Hope it helps you, hugs.
You could also use json_decode($json, true) then you get an assocative array which you can access like this $json['Version']
Here is the Print_r of a $_SESSION variable. I am trying to access the value of user_id.
Array (
[userPieUser] => loggedInUser Object (
[email] => xxxxx#hotmail.com
[hash_pw] => xxxxxxxxx
[user_id] => 3
[clean_username] => scott
[display_username] => scott
[remember_me] => [remember_me_sessid] => c13348e6d296b8d96797eed631b20ad13f58e60af00760620327b019e4773c2d6
)
)
I have tried a dozen or so ways to get that value in PHP, however no luck. such as looping through and doing if ($key = 'user_id'){ echo $value } but that just returns the first element in the array. I'm sure it is rudimentary, however appreciate the help.
The one you're looking for is:
$_SESSION['userPieUser']->user_id
As it is part of the userPieUser object.
You should try:
echo $_SESSION['userPieUser']->user_id;
fyi: There is object withing array 'userPieUser'.
Access the variable like so:
echo $_SESSION['userPieUser']['user_id'];
PHP supports accessing object indicies like this within other object indicies.
Hello i am new with Json in php. I have a web service that gives me data in json format.
I take this data making decode put when i try to use this data i cant
Here is my code:
$url = "http://www.webinsurer.gr/....;
$json = json_decode(#file_get_contents($url), true);
and if i make debug i see the data i take :
[file] => C:\xampp\htdocs\development.insurancemarket.gr\mvc\protected\models\Ratingsmail.php
[line] => 18
[data] => Array
(
[0] => Array
(
[POL_EXPIREDATE] => 2014-05-19 12:00:00
[INCO_IWCODE] => 41
[INCO_DESC] => MAPFRE ASISTENCIA
[PACK_IWCODE] => 0
[PACK_DESC] =>
[OFFERCODE] =>
[PAYMENTCODE] =>
)
[1] => Array
(.....
But i dont now how to use that data. when i try this :
$b= $json->{1}->{'INCO_IWCODE'};
Debug::debuger($b);
the result is nothing
what is wrong? sorry for long post.
When setting the second argument on json_decode to true, you are actively asking for the data to be returned in an associative array and not objects. Thats why your code didn't work.
Demo
You are converting json to associative array. You need to use;
$b = $json["data"][1]["INCO_IWCODE"];
$a = $json[0]->INCO_IWCODE;
That worked for my guys. thanks you all!!!
I am using jQuery to convert form data to serialized form using:
var data = $('#frm').serialize();
In php I get this:
fiscalyear_id=4&category=Category+A&isgraph=on&Title=a&Value=a&Title=b&Value=b&category=Category+B&Title=c&Value=c&Title=d&Value=d&category=Category+C&Title=e&Value=e&Title=f&Value=f&data;=&csrf_check=9c288285b379701b27c3836091c00b04
And when I do:
parse_str($_POST['data'], $data);
pretty_print($data);
I get:
Array
(
[fiscalyear_id] => 4
[category] => Category C
[isgraph] => on
[Title] => f
[Value] => f
[data;] =>
[csrf_check] => 9c288285b379701b27c3836091c00b04
)
As can be seen, not all paramters are coming in array above. Does anyone have an idea what I am doing wrong ? Thanks for the help
parse_str parses the string in variable and you are getting it into array.
but duplicate array keys are not possible,
hence you are not getting all the values because they have the same key!