<?php $params = array( 'data' => array( 'total_shipping_amount' => 100, 'items' => array( 1 => 10, 2 => 20, 3 => 70, ) ) ); $encoded = json_encode($params); $decoded = json_decode($encoded); $items = $decoded->data->items; $n = 1; var_dump($items->$n);
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