Hanisch-IT / kraken-api

example/21_OpenPositions.php

<?php
require_once(__DIR__ . '/../vendor/autoload.php');

try {
    $api = new \HanischIt\KrakenApi\KrakenApi(
        "Your-API-Key",
        "Your-API-Sign"
    );

    $openPositions = $api->getOpenPositions('txid');

    foreach ($openPositions->getPositions() as $position) {

The method getPositions() does not exist on HanischIt\KrakenApi\Model\ResponseInterface. It seems like you code against a sub-type of HanischIt\KrakenApi\Model\ResponseInterface such as HanischIt\KrakenApi\Call\OpenPositions\OpenPositionsResponse.

        echo $position->getPositiontxid() . ": " . $position->getOrdertxid() . "\n";
    }

} catch (Exception $e) {
    echo $e->getMessage();
}