CODEWITHSUNDEEP
phpjson
Rand
Rand

Reputation: 105

Accessing an array in PHP with no name

I am trying to access decoded json elements that is in just one array, example:

 [
    {
    timestamp: 1509523044,
    tid: 83450451,
    price: "6381.0",
    amount: "1.0",
    type: "sell"
    },
    {
    timestamp: 1509523044,
    tid: 83450448,
    price: "6380.0",
    amount: "1.12894377",
    type: "buy"
    }
 ]

I have tried 

$json = json_decode($result); 

echo $json[0]->price;
echo $json->[0]price;
echo $json->[0]->price;

Keep getting errors such as:

Fatal error: Cannot use object of type stdClass as array in

How can i acess each indivudal element with no array name? Thanks

Upvotes: 2

Views: 1029

Answers (3)

René Höhle
René Höhle

Reputation: 27305

When you use json_decode you get an object. If you need an array you have to set the second parameter to true. 

$json = json_decode($result, true);

Otherwise you have an object and you have to access all like an object. You can check that with var_dump($json);. Generally it's better to work with the object version instead of the array version. But sometimes you need arrays.

Edit:

what i've written in the comment your json is not valid but with the original one you gave me it's working well. 

var_dump(json_decode(file_get_contents('https://api.bitfinex.com/v1/trades/BTCUSD'), true));

with your example input it's working.

Upvotes: 1

Andreas
Andreas

Reputation: 23958

Because it's not a correct json you have to make it correct before decoding.

Here I use regex to replace the keys to "keys".

$str = ' [
{
timestamp: 1509523044,
tid: 83450451,
price: "6381.0",
amount: "1.0",
type: "sell"
},
{
timestamp: 1509523044,
tid: 83450448,
price: "6380.0",
amount: "1.12894377",
type: "buy"
}
]';


$json = json_decode(preg_replace('/(\w+):/', '"$1":', $str));
Echo $json[0]->price;

https://3v4l.org/MMTvm

Upvotes: 0

Susy11
Susy11

Reputation: 260

Your json is malformed: in order to have a valid json you should have something like this: 

<?php
$a = '[{
    "timestamp": 1509523044,
    "tid": 83450451,
    "price": "6381.0",
    "amount": "1.0",
    "type": "sell"
},
{
    "timestamp": 1509523044,
    "tid": 83450448,
    "price": "6380.0",
    "amount": "1.12894377",
    "type": "buy"
}
]';
$b = json_decode($a, true);
var_dump($b);

This will return the array you need

Upvotes: 4

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