Sabre API讨价还价器Max-FOREACH LOOP

Question

我创建了一个包含2条记录的数组。您可以在下面看到它。

$sabre_req = array(
  '0' => array(
    'origin' => 'CGK',
    'destination' => 'SUB',
    'depart_date' => '2019-01-09T11:00:00',
    'return_date' => '2019-01-10T11:00:00',
    'budget_from' => 10000,
    'budget_to' => 100000,
    'total_pax' => 1,
  ),
  '1' => array(
    'origin' => 'CGK',
    'destination' => 'SUB',
    'depart_date' => '2019-01-09T11:00:00',
    'return_date' => '2019-01-10T11:00:00',
    'budget_from' => 10000,
    'budget_to' => 100000,
    'total_pax' => 1,
  ),
);

在第二条记录中无法解决，给了我一个错误。
它只是给了我一个价格结果，但我有2条记录在阵列中。

<?php


$sabre_req = array(
  '0' => array(
    'origin' => 'CGK',
    'destination' => 'SUB',
    'depart_date' => '2019-01-09T11:00:00',
    'return_date' => '2019-01-10T11:00:00',
    'budget_from' => 10000,
    'budget_to' => 100000,
    'total_pax' => 1,
  ),
  '1' => array(
    'origin' => 'CGK',
    'destination' => 'SUB',
    'depart_date' => '2019-01-09T11:00:00',
    'return_date' => '2019-01-10T11:00:00',
    'budget_from' => 10000,
    'budget_to' => 100000,
    'total_pax' => 1,
  ),
);



foreach ($sabre_req as $value) {


$key = "T1RLAQIzXupmNQFuFpTBLKCrqDubwwLN8xCK9f5pKbye0zUer0e6Yo3ZAADAqojZeUxbXOlWCOguUB0wHVvIquBzWTSmbdU7uvlv43nYyDPMSduE/kD23vLDuoHQldLyGlV443ZVTyJgheFqyufXNoD0oIPd8hsQhFr2WWxLzjV4dtJ9V3u7TxcdD+aqhB4w/Z3rOCLZh8WDVouzUYuSum9zgTmK4q6v8fyXM5qoVQkYmON2dUv7CvsFarm/htGSC2wu5ADO3XoIXz5bdbb/shs7pOhm0IpqBf0SKT6QvRG1XWdozN0IYIyuI3IU";
$header[] = "Authorization: Bearer " . $key;
$header[] = "Accept: application/json"; 
$header[] = "Content-Type: application/json";

$data = '{
 "OTA_AirLowFareSearchRQ": {
     "Target": "Production",
       "POS": {
            "Source": [{
                "PseudoCityCode":"F9CE",
                "RequestorID": {
                    "Type": "1",
                  "ID": "1",
                    "CompanyName": {
                  }
             }
         }]
        },
        "OriginDestinationInformation": [{
          "RPH": "1",
           "DepartureDateTime": "'.$value['depart_date'].'",
           "OriginLocation": {
             "LocationCode": "'.$value['origin'].'"
         },
            "DestinationLocation": {
                "LocationCode": "'.$value['destination'].'"
         },
            "TPA_Extensions": {
             "SegmentType": {
                    "Code": "O"
               }
         }
     },
        {
         "RPH": "2",
           "DepartureDateTime": "'.$value['return_date'].'",
           "OriginLocation": {
             "LocationCode": "'.$value['origin'].'"
         },
            "DestinationLocation": {
                "LocationCode": "'.$value['destination'].'"
         },
            "TPA_Extensions": {
             "SegmentType": {
                    "Code": "O"
               }
         }
     }],
       "TravelPreferences": {
          "ValidInterlineTicket": true,
           "CabinPref": [{
             "Cabin": "Y",
             "PreferLevel": "Preferred"
            }],
           "TPA_Extensions": {
             "TripType": {
                   "Value": "Return"
             },
                "LongConnectTime": {
                    "Min": 780,
                 "Max": 1200,
                    "Enable": true
              },
                "ExcludeCallDirectCarriers": {
                  "Enabled": true
             }
         }
     },
        "TravelerInfoSummary": {
            "SeatsRequested": [1],
          "AirTravelerAvail": [{
              "PassengerTypeQuantity": [{
                 "Code": "ADT",
                    "Quantity": 1
               }]
            }],
            "PriceRequestInformation" : {
                "CurrencyCode" : "PHP"
            }
        },
        "TPA_Extensions": {
         "IntelliSellTransaction": {
             "RequestType": {
                    "Name": "50ITINS"
             }
         }
     }
 }
}';
$jsonstr = json_decode($data, true);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api-crt.cert.havail.sabre.com/v4.3.0/shop/flights?mode=live&limit=50&offset=1" );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_HTTPHEADER,$header);

$result = curl_exec ($ch);
curl_close($ch);
$sabre_data = json_decode($result, true);

// // get the lowest fare
$lowest_fare = array();
if(@$sabre_data['OTA_AirLowFareSearchRS']['PricedItinCount'] > 0)
{
 foreach ($sabre_data['OTA_AirLowFareSearchRS']['PricedItineraries']['PricedItinerary'] as $pricing_info) 
 {
   foreach ($pricing_info['AirItineraryPricingInfo'] as $pricing_info) 
   {
     $is_available = 1;
     foreach ($pricing_info['PTC_FareBreakdowns']['PTC_FareBreakdown'] as $breakdown) 
     {
       foreach ($breakdown['FareInfos']['FareInfo'] as $key => $seats) 
       {
         if($value['total_pax'] > $seats['TPA_Extensions']['SeatsRemaining']['Number'])
         { 
           $is_available = 0;
         }
       }
     }
     // If is_available == 1 get the price
     if($is_available == 1)
     {
       $lowest_fare[] = array(
                    "price" => $pricing_info['ItinTotalFare']['TotalFare']['Amount'],
                );
     }
   }
 }
}
else
{
 echo "no content";
}

$lowest_price = min($lowest_fare);
$total_fare = $lowest_price['price'] * $value['total_pax'];
echo '<br>'.$total_fare;
}

?>

这是结果。

9559no content
Warning: min(): Array must contain at least one element in C:\xampp\htdocs\apitut\sabre.php on line 169

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