CODEWITHSUNDEEP
phpjson
kalavathi
kalavathi

Reputation: 1

how to decode json object using php

I am getting following result from database:

stdClass Object ( [risk_challenge] => ["dfsgdfgdgdf","dfgdfgdfg","dfgdfgdfgdf"] )

When I tried to decode it with following function:

$result = json_decode($result,true);

I got this error:

Message: json_decode() expects parameter 1 to be string, object given

Upvotes: 0

Views: 114

Answers (2)

Elias Van Ootegem
Elias Van Ootegem

Reputation: 76395

What you have is a valid object, there's nothing JSON about it, it's an instance of the core stdClass class of PHP. If you want to use it (for example get list the risk_challenge values) simply write:

foreach ($obj->risk_challenge as $value)
    echo ' *> ', $value, PHP_EOL;

Job done.
If you want to convert the object to an associative array, you have 2 options:

$array = (array) $object;//a simple cast
$array = json_decode( //decode with assoc argument = true
    json_encode(// but first encode it
        $object
    ), true);

Why would you use the second version instead of the cast? simple: A cast is shallow (if any of the properties/keys contains another object, it will not be cast to an associative array, but it'll remain an object. json_decode does work recursively. In your case, though, I'd stick to the cast.

Upvotes: 1

Sohail Yasmin
Sohail Yasmin

Reputation: 518

I think you want to encode in json it is already decoded

use json_encode to encode

Upvotes: 0

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