извлечь значение данных из вложенного JSON

Я пытаюсь получить некоторые конкретные поля из этого Json.

 fn({
"processingDurationMillis": 454,
"authorisedAPI": true,
"success": true,
"airline": "MH",
"validCreditCards": [
"AX",
"CA",
"VI"],
"paypal": true,
"outboundOptions": [
{
"optionId": 0,
"flights": [
{
"flightNumber": "0066",
"departureAirport": {
"code": "KUL",
"name": "Kuala Lumpur Intl",
"city": "Kuala Lumpur",
"country": "Malaysia",
"timezone": "Asia/Kuala_Lumpur",
"lat": 2.745578,
"lng": 101.709917,
"terminal": null,
"gate": null
},
"arrivalAirport": {
"code": "ICN",
"name": "Incheon Intl",
"city": "Seoul",
"country": "South Korea",
"timezone": "Asia/Seoul",
"lat": 37.469075,
"lng": 126.450517,
"terminal": null,
"gate": null
},
"marketingAirline": "MH",
"mealIndicator": "M",
"allowedSsrs": {

},
"operatingAirline": null,
"equipment": "333",
"equipmentName": "Airbus A330-300",
"flightRPH": 10101,
"comments": [
"MH CODESHARE WITH KE"],
"depScheduled": "2015-04-28T23:30:00.000+08:00",
"arrScheduled": "2015-04-29T07:10:00.000+09:00",
"depEstimated": null,
"depActual": null,
"arrEstimated": null,
"arrActual": null,
"eligibleForEticketing": true,
"cabin": "ECONOMY",
"fareMarketingType": "BASIC",
"rbd": "N",
"seatsAvailable": 9,
"durationMinutes": 400,
"minutesToScheduledFlightDeparture": 6486
}
],
"stopOvers": [

],
"fareDetails": {
"perPassengerJourneyFares": [
{
"passengerType": "ADT",
"fare": "1214.95",
"currencyCode": "MYR"}
],
"perPassengerTripTaxes": [
{
"passengerType": "ADT",
"totalTax": "68.90",
"taxes": [
{
"code": "MY",
"amount": "65.00",
"currency": "MYR"},
{
"code": "D8",
"amount": "3.90",
"currency": "MYR"}
]
}
],
"journeyFare": "1214.95",
"totalTripFare": "1283.90",
"fareCurrency": "MYR"},
"magicString": "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",
"seatsAvailable": [
9
],
"corporateAccount": false,
"flightCanBeHeld": true,
"durationMinutes": 400,
"gaFareDetails": {
"perPassengerJourneyFares": [
{
"passengerType": "ADT",
"fare": "1214.95",
"currencyCode": "MYR"}
],
"perPassengerTripTaxes": [
{
"passengerType": "ADT",
"totalTax": "68.90",
"taxes": [
{
"code": "MY",
"amount": "65.00",
"currency": "MYR"},
{
"code": "D8",
"amount": "3.90",
"currency": "MYR"}
]
}
],
"journeyFare": "1214.95",
"totalTripFare": "1283.90",
"fareCurrency": "MYR"},
"adobeFareDetails": {
"perPassengerJourneyFares": [
{
"passengerType": "ADT",
"fare": "336.66",
"currencyCode": "USD"}
],
"perPassengerTripTaxes": [
{
"passengerType": "ADT",
"totalTax": "19.09",
"taxes": [
{
"code": "MY",
"amount": "18.01",
"currency": "USD"},
{
"code": "D8",
"amount": "1.08",
"currency": "USD"}
]
}
],
"journeyFare": "336.66",
"totalTripFare": "355.77",
"fareCurrency": "USD"},
"userAgentFareDetails": {
"perPassengerJourneyFares": [
{
"passengerType": "ADT",
"fare": "336.66",
"currencyCode": "USD"}
],
"perPassengerTripTaxes": [
{
"passengerType": "ADT",
"totalTax": "19.09",
"taxes": [
{
"code": "MY",
"amount": "18.01",
"currency": "USD"},
{
"code": "D8",
"amount": "1.08",
"currency": "USD"}
]
}
],
"journeyFare": "336.66",
"totalTripFare": "355.77",
"fareCurrency": "USD"},
"eligibleForeTicketing": true,
"lowestSeatCount": 9,
"directFlight": true
}
],
"departureAirport": {
"code": "KUL",
"name": "Kuala Lumpur Intl",
"city": "Kuala Lumpur",
"country": "Malaysia",
"timezone": "Asia/Kuala_Lumpur",
"lat": 2.745578,
"lng": 101.709917,
"terminal": null,
"gate": null
},
"arrivalAirport": {
"code": "ICN",
"name": "Incheon Intl",
"city": "Seoul",
"country": "South Korea",
"timezone": "Asia/Seoul",
"lat": 37.469075,
"lng": 126.450517,
"terminal": null,
"gate": null
},
"apiRequired": true,
"fareRules": [
{
"id": 50,
"order": 1,
"priority": 0,
"code": "Basic",
"name": "MHbasic",
"value": "Economy Class Fares",
"listFareRules": [
{
"id": 130,
"order": 0,
"code": "",
"name": "Discount level",
"value": "Up to 65%"},
{
"id": 140,
"order": 1,
"code": "",
"name": "Where to buy",
"value": "All channels"},
{
"id": 150,
"order": 2,
"code": "",
"name": "Advance purchase",
"value": "Applies"},
{
"id": 160,
"order": 3,
"code": "",
"name": "Payment",
"value": "Ticket dateline applies"},
{
"id": 170,
"order": 4,
"code": "",
"name": "Baggage allowance",
"value": "2pc/30kg"},
{
"id": 180,
"order": 5,
"code": "",
"name": "Advance seat selection",
"value": "Not allowed"},
{
"id": 190,
"order": 6,
"code": "",
"name": "Enrich miles",
"value": "Nil"},
{
"id": 200,
"order": 7,
"code": "",
"name": "Change of booking",
"value": "Not allowed"},
{
"id": 210,
"order": 8,
"code": "",
"name": "Upgrade",
"value": "Not allowed"},
{
"id": 220,
"order": 9,
"code": "",
"name": "Stand by at the airport",
"value": "For a fee"},
{
"id": 220,
"order": 10,
"code": "",
"name": "No show",
"value": "Penalty applies"},
{
"id": 230,
"order": 11,
"code": "",
"name": "Refund",
"value": "For a fee"}
],
"listFareNotes": [
{
"id": 10,
"order": 0,
"code": "",
"name": "Important Notice",
"value": ""},
{
"id": 15,
"order": 1,
"code": "",
"name": "",
"value": ""},
{
"id": 20,
"order": 2,
"code": "",
"name": "1.",
"value": "Generic attributes shown only applies to MH operated flights. MH3000-3999, MH5200-5999 and MH9000-9999 Series flights are subject to their own rules. Please contact MH Call Center or ticket offices for actual fare rules."},
{
"id": 30,
"order": 3,
"code": "",
"name": "2.",
"value": "For transpacific and transatlantic flights, the following baggage allowances apply: Economy - 2 pieces (23kg each piece), First and Business - 2 pieces (32kg each piece)."},
{
"id": 50,
"order": 5,
"code": "",
"name": "3.",
"value": "Upgrade, standby at the airport and refund fees for specific routes can be obtained from subsequent booking pages."},
{
"id": 60,
"order": 6,
"code": "",
"name": "4.",
"value": "Standby at the airport denotes the same day for an earlier flight."},
{
"id": 70,
"order": 7,
"code": "",
"name": "5.",
"value": "Fare rules shown are indicative only. Please call our Contact Center to check the detailed fare rules."},
{
"id": 80,
"order": 8,
"code": "",
"name": "",
"value": "Should there be any discrepancy between the above information and the terms and conditions (T&C) published in the fare rules, then the T&C in the fare rules shall prevail."}
]
}
],
"Errors": [

],
"Warnings": [

]

})

Я хочу получить номер рейса, depScheduled, arrScheduled и стоимость проезда из вышеуказанного JSON.

вот мой код:

$json2 = json_decode($json,true);
$result= array();
foreach ($json2['outboundOptions']['flights']as $theentity) {
$result[] = $theentity['flightNumber'];
}
print_r($result);

Приведенный выше код возвращает мне сообщение об ошибке «Недопустимый аргумент для foreach ()». Я искал, но все еще не нашел решения ..