PHP iterate through nested array encoded to array

Question

Im trying to do a foreach loop to get all the value in an array & another loop for addresses.

My code:

$json = json_decode($response, true);
foreach($json["result"]["vout"]["value"] as $a)
{
    echo "<br> $a";
}

{
    "result": {
        "vout": [
            {
                "value": 0.09998700,
                "n": 0,
                "scriptPubKey": {
                    "addresses": [
                        "16Tjr2hz67mQW1YHpSLnKKDoXi4na6D66W"
                    ]
                }
            },
            {
                "value": 1.63707231,
                "n": 1,
                "scriptPubKey": {
                    "addresses": [
                        "1LSnED1PUpssw9JAa2PPsypmjKrnMfz6u3"
                    ]
                }
            },
            {
                "value": 5.00000000,
                "n": 2,
                "scriptPubKey": {
                    "addresses": [
                        "17BkwbuiiDqMQGqBomZeR2XUmKzhv8EwDg"
                    ]
                }
            }
        ],
        "confirmations": 2885,
        "time": 1620396315,
        "blocktime": 1620396315
    },
    "error": null,
    "id": "curltest"
}

Error:

Warning: Undefined array key "value" in C:\xampp\htdocs\test.php on line 27
Warning: foreach() argument must be of type array|object, null given in C:\xampp\htdocs\test.php on line 27

Small information: $response is a json object i get from a curl $json is the json formatted in the standard php array structure

`$json["result"]["vout"]["value"]` doesn't exist because vout is an array — ADyson, May 28 '21 at 19:12
You could loop through `$json["result"]["vout"]` and then get the value from each item in that array... — ADyson, May 28 '21 at 19:13
Still shoots out an error Warning: Array to string conversion in C:\xampp\htdocs\test.php on line 27 even though i tried echo strval — Biba Gee, May 28 '21 at 19:18
With `$json["result"]["vout"]` -> `print_r($a["scriptPubKey"]["addresses"]);` — Nigel Ren, May 28 '21 at 19:27

score 2 · Answer 1 · answered May 28 '21 at 19:27

2

There is some issue with your code as $json["result"]["vout"]["value"] does not exist.

So, you need to loop through over $json["result"]["vout"]

as below:

foreach($json["result"]["vout"] as $a)
{
    $value = $a['value'];
    echo "<br> $value";
}

answered May 28 '21 at 19:27

dev_mustafa

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PHP iterate through nested array encoded to array

1 Answers1