<?php
header('Content-type: application/json');
$data = json_decode('{"basliklar":{"1":"Men\u00fc Ba\u015fl\u0131\u011f\u0131 1","2":"Men\u00fc Ba\u015fl\u0131\u011f\u0131 2"},"urunler":{"1":{"baslik":{"1":"\u00dcr\u00fcn Ba\u015fl\u0131k 1"},"aciklama":{"1":"\u00dcr\u00fcn A\u00e7\u0131klama 1"},"fiyat":{"1":"1"}},"2":{"baslik":{"1":"\u00dcr\u00fcn Ba\u015fl\u0131k 2"},"aciklama":{"1":"\u00dcr\u00fcn A\u00e7\u0131klama 2"},"fiyat":{"1":"2"}},"3":{"baslik":{"1":"\u00dcr\u00fcn Ba\u015fl\u0131k 3"},"aciklama":{"1":"\u00dcr\u00fcn A\u00e7\u0131klama 3"},"fiyat":{"1":"3"}},"4":{"baslik":{"2":"\u00dcr\u00fcn Ba\u015fl\u0131k 11"},"aciklama":{"2":"\u00dcr\u00fcn A\u00e7\u0131klama 11"},"fiyat":{"2":"11"}},"5":{"baslik":{"2":"\u00dcr\u00fcn Ba\u015fl\u0131k 22"},"aciklama":{"2":"\u00dcr\u00fcn A\u00e7\u0131klama 22"},"fiyat":{"2":"22"}}}}', TRUE);

$array = array();

foreach ($data['urunler'] as $id => $row) {
    $array[] = array(
        'menu' => $data['basliklar'][ key($row['baslik']) ],
        'baslik' => reset($row['baslik']),
        'aciklama' => reset($row['aciklama']),
        'fiyat' => reset($row['fiyat'])
    );
}

exit(json_encode($array, JSON_NUMERIC_CHECK));