CODEWITHSUNDEEP
phpjson
Ben
Ben

Reputation: 369

Get JSON object from URL with php issue

I have the following php:

<?php
$json = file_get_contents('https://www.cryptonator.com/api/full/doge-usd');
$obj = json_decode($json);
echo $obj->ticker.price;
?>

This returns a blank page. Yet when I do:

echo $json;

I get the full JS:

{"ticker":{"base":"DOGE","target":"USD","price":"0.00013826","volume":"14555353.11203900","change":"-0.00000236","markets":[{"market":"Bleutrade","price":"0.00014400","volume":1.49328868},{"market":"Cex.io","price":"0.00013864","volume":6236157},{"market":"Comkort","price":"0.00014990","volume":412.40655758},{"market":"Cryptsy","price":"0.00013853","volume":382887.92442395},{"market":"Exmo","price":"0.00013800","volume":7932091.2389102},{"market":"Nix-e","price":"0.00011100","volume":539.10150086},{"market":"useCryptos","price":"0.00000305","volume":3263.94735765}]},"timestamp":1425854462,"success":true,"error":""}

I just want to create a variable that contains the value within the 'price' field.

Thanks.

Upvotes: 1

Views: 273

Answers (4)

arkascha
arkascha

Reputation: 42885

The json_encode() call returns a nested object. So you have to address the price attribute like that: 

echo $obj->ticker->price;

The . operator you coded is a string concatenation in php. That is not what you want. php tries to concatenate two strings, the first being an object of type stdClass for which no string conversion routine exists. That is why you get the error.

Upvotes: 1

Shahzad Barkati
Shahzad Barkati

Reputation: 2526

This is working and tested code:

<?php
  $json = file_get_contents('https://www.cryptonator.com/api/full/doge-usd');
  $obj = json_decode($json,true);
  echo 'price: '.$obj['ticker']['price'];
?>

output: price: 0.00013833

Upvotes: 0

Christian
Christian

Reputation: 799

there are to ways to do this.

1) You can get the value like this

echo $obj->ticker->price;

2) You can convert the object into an associative array

$obj = json_decode($json, !!'assoc');
echo $obj["ticker"]["price"];

Upvotes: 1

John B
John B

Reputation: 471

You want to do:

echo $obj->ticker->price;

Upvotes: 0

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