- var_dump: documentation ( source)
- json_decode: documentation ( source)
- urldecode: documentation ( source)
- urlencode: documentation ( source)
<?php
$str = urlencode('{"metodo":"Recarga","data":{"min_origen":"XXXXXXXXXX","min_destino":"XXXXXXXXXX","destino":"XXXXXXXXXX","operador":"XXXXXXXXXX","monto":"NNNNN","id_transaccion_cliente":"XXXXXXXXX","canal":"aaaaaa"}');
$json = urldecode($str);
var_dump(json_decode($json, true));
?>