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hello everyone. im working on a js

hello everyone. im working on a js

(OP)
hello everyone.
im working on a json from this site. https://btc-e.com/api/3/ticker/btc_usd
im trying to get the "last" key and
im trying to echo my own premiunm exchange rate.by getting 10% of the last key and add it up to the last key
my codes was like this
<code>
<?php
$url = "https://btc-e.com/api/3/ticker/btc_usd";
$fileGet = file_get_contents($url);
$json = json_decode($fileGet, TRUE);
$json = $json["ticker"]["last"];
$premium = 10; //in percentage
$premium = $premium / 100;
$dollar_amount = $premium * $json;
$customer_price = $json + $dollar_amount;
echo $customer_price;
?>
</code>
there was no error indicated.but it just printed "0" on the screen.
please help. i dont know where something does wrong.

but everything work fine to line 4 $json=$json["ticker"]["last"]; because it print the correct last ticker on the browser.

RE: hello everyone. im working on a js

Hi

"ticker" ? Are you sure ? It looks more like $json["btc_usd"]["last"] to me.

Feherke.
feherke.github.io

RE: hello everyone. im working on a js

There is no "ticker" index in that json array.

So you should be getting an Undefined Index Notice because there no addressable item there. But your PHP may be set to suppress notices.

To see exactly what the array looks like and be able to address it correctly, its always a good idea to print it out. You can use print_r() to do so.

CODE

$json = json_decode($fileGet, TRUE);
echo "<pre>" . print_r($json,1) . "</pre>"; 

This should print out:

Array
(
    [btc_usd] => Array
        (
            [high] => 2486.96
            [low] => 2379.112
            [avg] => 2433.036
            [vol] => 8576408.53547
            [vol_cur] => 3526.96822
            [last] => 2414.001
            [buy] => 2415.99
            [sell] => 2414.001
            [updated] => 1498927868
        )

)
 

So as feherke points out you should be addressing $json['btc_usd']['last']

----------------------------------
Phil AKA Vacunita
----------------------------------
OS-ception: Running Linux on a Virtual Machine in Windows which itself is running in a Virtual Machine on Mac OSx.

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