Selecting a property from JSON - php

Question

I have a JSON similar to this one:
{"request":
{"Target":"Affiliate_Offer","Format":"json","Service":"HasOffers","Version":"2","NetworkId":"adattract","Method":"getPayoutDetails","api_key":"bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891","offer_id":"9463"},"response":
{"status":1,"httpStatus":200,"data":{"offer_payout":
{"payout":"0.820"}},"errors":[],"errorMessage":null}}
And I want to select only value of payout which is 0.820.
Here what I try
<?php
include 'db.php';
$result = mysql_query("SELECT * FROM ada WHERE require_approval='0' ORDER BY i2 ASC LIMIT 0,10") or die(mysql_error());
// keeps getting the next row until there are no more to get
while ($row = mysql_fetch_array($result)) {
echo "<div>";
$r = $row['id'];
$ri = $row['i2'];
// $ri contains no. 1 2 3 4 5..//
$json = '';
}
$mydata = json_decode($json, true);
$data = $mydata["response"]["data"];
$pay = $data[$ri]["offer_payout"][payout];
echo "</div>";
mysql_query("INSERT INTO thumb(img,id) VALUES('$nth','$oid')");
echo $pay; //output of 0.8200 but not work plz here i need help//
}
?>

Answer 1

In the vain of 'Give a man a fish and he will feed his family for a day. Teach a man to fish and he will feed his family forever' here is how you find out what a json object looks like.
$json = '{"request":
{"Target":"Affiliate_Offer","Format":"json","Service":"HasOffers","Version":"2","NetworkId":"adattract","Method":"getPayoutDetails","api_key":"bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891","offer_id":"9463"},"response":
{"status":1,"httpStatus":200,"data":{"offer_payout":
{"payout":"0.82000"}},"errors":[],"errorMessage":null}}';
$mydata = json_decode($json,true);
print_r($mydata);
Will output this :-
Array
(
[request] => Array
(
[Target] => Affiliate_Offer
[Format] => json
[Service] => HasOffers
[Version] => 2
[NetworkId] => adattract
[Method] => getPayoutDetails
[api_key] => bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891
[offer_id] => 9463
)
[response] => Array
(
[status] => 1
[httpStatus] => 200
[data] => Array
(
[offer_payout] => Array
(
[payout] => 0.82000
)
)
[errors] => Array
(
)
[errorMessage] =>
)
)
And now you know how to address any and all fields
So the field you want will be
$pay = $mydata["response"]["data"]["offer_payout"]["payout"];
Now you decided to convert a JSON Object to an array, there is no need to do that, and in some ways an object is even easier to address and uses less key strokes than an array.
So leave the ,true out of the json_decode and you get this
$json = '{"request":
{"Target":"Affiliate_Offer","Format":"json","Service":"HasOffers","Version":"2","NetworkId":"adattract","Method":"getPayoutDetails","api_key":"bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891","offer_id":"9463"},"response":
{"status":1,"httpStatus":200,"data":{"offer_payout":
{"payout":"0.82000"}},"errors":[],"errorMessage":null}}';
$mydata = json_decode($json);
print_r($mydata);
Which outputs :-
stdClass Object
(
[request] => stdClass Object
(
[Target] => Affiliate_Offer
[Format] => json
[Service] => HasOffers
[Version] => 2
[NetworkId] => adattract
[Method] => getPayoutDetails
[api_key] => bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891
[offer_id] => 9463
)
[response] => stdClass Object
(
[status] => 1
[httpStatus] => 200
[data] => stdClass Object
(
[offer_payout] => stdClass Object
(
[payout] => 0.82000
)
)
[errors] => Array
(
)
[errorMessage] =>
)
)
Now the field you want to address is :-
$pay = $mydata->response->data->offer_payout->payout;

Answer 2

You can get values from the json as like that:
// your json
$json = '{"request":
{"Target":"Affiliate_Offer","Format":"json","Service":"HasOffers","Version":"2","NetworkId":"adattract","Method":"getPayoutDetails","api_key":"bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891","offer_id":"9463"},"response":
{"status":1,"httpStatus":200,"data":{"offer_payout":
{"payout":"0.82000"}},"errors":[],"errorMessage":null}}';
// json_decode() function with second param true for array format
$json_decoded = json_decode($json,true);
echo $json_decoded['response']['data']['offer_payout']['payout']; //0.82000
How can you get this in your code?
You just need to change these two lines in your code:
$data = $mydata["response"]["data"];
$pay = $data["offer_payout"]['payout']; //0.82000

Answer 3

$pay = $mydata["response"]["data"]["offer_payout"]["payout"];
You might want to cast it to float, as it is a string in the JSON data you provided:
$pay = (float) $mydata["response"]["data"]["offer_payout"]["payout"];

Answer 4

First you need convert json to array
$array =json_decode($json,TRUE); //$json is converted to array
Now you can retrieve any property from the array
The complete code example is
$json = '{"request":
{"Target":"Affiliate_Offer","Format":"json","Service":"HasOffers","Version":"2","NetworkId":"adattract","Method":"getPayoutDetails","api_key":"bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891","offer_id":"9463"},"response":
{"status":1,"httpStatus":200,"data":{"offer_payout":
{"payout":"0.82000"}},"errors":[],"errorMessage":null}}';
$mydata = json_decode($json,true);
print_r($mydata);
OutPut:
Array ( [request] => Array ( [Target] => Affiliate_Offer [Format] => json [Service] => HasOffers [Version] => 2 [NetworkId] => adattract [Method] => getPayoutDetails [api_key] => bd2e82f029c50b582db85868b7c0b8ab99d095886ab079f87b464bb68486c891 [offer_id] => 9463 ) [response] => Array ( [status] => 1 [httpStatus] => 200 [data] => Array ( [offer_payout] => Array ( [payout] => 0.82000 ) ) [errors] => Array ( ) [errorMessage] => ) ) 1
From the result you can retrieve any array property
Eg-
echo $mydata['response']['status'];
OutPut:
1

Answer 5

Hope this will help you.
$mydata = json_decode($json, true);
$data = $mydata['response']['data'];
print_r($data);
print_r($data['offer_payout']['payout']);