How do I parse this JSON array in PHP

Question

I've been playing around a little bit with the Bitcoin API and finally have it interacting with my local bitcoind server.

Now the following code:

$bitcoin->listreceivedbyaccount();

prints the following:

Array
(
    [0] => Array
        (
            [account] => root213
            [amount] => 1
            [confirmations] => 3
        )

)

How can I print or work with [account] or [amount] for example? Can someone please tell me?

Answer 1

/**
 *   Firstly collect the data 
 *   as an accessible variable
**/
$SomeVar = $bitcoin->listreceivedbyaccount();

/**
 *   Print the contents for just demonstration! 
 *   (Dont use print_r() in production!)
**/ 
print_r( $SomeVar );
Array
(
    [0] => Array
        (
            [account] => root213
            [amount] => 1
            [confirmations] => 3
        )

)

Access to 'Account'

echo $SomeVar[0]["account"]; //echos root213

Access to 'Amount'

echo $SomeVar[0]["amount"]; //echos 1

Answer 2

$data = $bitcoin->listreceivedbyaccount();

$account = $data[0]['account'];
$amount = $data[0]['amount'];

Answer 3

$arrJSON = $bitcoin->listreceivedbyaccount();
foreach($arrJSON as $arr) {
    print($arr['account']);
    print($arr['amount']);           
}

Answer 4

/**
 * Convert a string, number, or object into an array.
 * Especially useful for objects such as those that
 * come from simplexml_load_file(), etc.
 *
 * @param mixed $non_array
 *   Any string, number, or object.
 *
 * @return
 *   An "arrayified" version of $non_array. At minimum,
 *   this should always return an empty array.
 */
function arrayify($non_array) {
  if (empty($non_array) && $non_array !== 0) {
    return array();
  }
  return unserialize(serialize(json_decode(json_encode((array) $non_array), 1)));
}

Then use it like this to extract the JSON data:

$data = arrayify($bitcoin->listreceivedbyaccount());
print_r($data);

Answer 5

Here's one way, if you want to work with multiple values:

$data = $bitcoin->listreceivedbyaccount();
$count = count($data);
// Avoid errors
$amounts = array();
// Avoid errors
$confirmations = array();
for ($i = 0; $i < $count; $i++) {
  $amounts[] = $data[$i]['amount'];
  $confirmations[] = $data[$i]['confirmations'];
}
foreach ($amounts as $amount) {
  // Do something, like:
  // print $amount;
}