object(stdClass)#5 (5) { ["totalElements"]=> int(1) ["totalPages"]=> int(1) ["page"]=> int(0) ["size"]=> int(50) ["content"]=> array(1) { [0]=> object(stdClass)#7 (42) { ["shipmentAddress"]=> object(stdClass)#6 (17) { ["id"]=> int(4283039115) ["firstName"]=> string(13) "" ["lastName"]=> string(8) "" ["company"]=> string(0) "" ["address1"]=> string(18) "Karataş Cad No.24" ["address2"]=> string(0) "" ["city"]=> string(5) "Kilis" ["cityCode"]=> int(79) ["district"]=> string(6) "Merkez" ["districtId"]=> int(655) ["postalCode"]=> string(5) "79000" ["countryCode"]=> string(2) "TR" ["neighborhoodId"]=> int(42628) ["neighborhood"]=> string(16) "Namık Kemal Mah" ["phone"]=> NULL ["fullAddress"]=> string(35) "" ["fullName"]=> string(22) "" } ["orderNumber"]=> string(10) "2175051416" ["grossAmount"]=> float(58.9) ["totalDiscount"]=> float(0) ["totalTyDiscount"]=> float(0) ["taxNumber"]=> NULL ["invoiceAddress"]=> object(stdClass)#8 (17) { ["id"]=> int(4283039114) ["firstName"]=> string(13) "Mehmet Özkan" ["lastName"]=> string(8) "BOYBEYİ" ["company"]=> string(0) "" ["address1"]=> string(18) "Karataş Cad No.24" ["address2"]=> string(0) "" ["city"]=> string(5) "Kilis" ["cityCode"]=> int(79) ["district"]=> string(6) "Merkez" ["districtId"]=> int(655) ["postalCode"]=> string(5) "79000" ["countryCode"]=> string(2) "TR" ["neighborhoodId"]=> int(42628) ["neighborhood"]=> string(16) "Namık Kemal Mah" ["phone"]=> NULL ["fullAddress"]=> string(35) "Karataş Cad No.24 Merkez Kilis" ["fullName"]=> string(22) "" } ["customerFirstName"]=> string(13) "" ["customerEmail"]=> string(28) "pf+oypke5yb@trendyolmail.com" ["customerId"]=> int(34120641) ["customerLastName"]=> string(8) "BOYBEYİ" ["id"]=> int(1649754050) ["cargoTrackingNumber"]=> int(7260009677883694) ["cargoProviderName"]=> string(22) "Aras Kargo Marketplace" ["lines"]=> array(1) { [0]=> object(stdClass)#9 (19) { ["quantity"]=> int(1) ["salesCampaignId"]=> int(61) ["productSize"]=> string(8) "Tek Ebat" ["merchantSku"]=> string(16) "hemenadresedn001" ["productName"]=> string(80) "Isıya Dayanıklı Alev *********** Yalıtımlı Bant hemenadresedn001, one size" ["productCode"]=> int(987272868) ["merchantId"]=> int(538644) ["amount"]=> float(58.9) ["discount"]=> float(0) ["tyDiscount"]=> float(0) ["discountDetails"]=> array(1) { [0]=> object(stdClass)#10 (3) { ["lineItemPrice"]=> float(58.9) ["lineItemDiscount"]=> float(0) ["lineItemTyDiscount"]=> float(0) } } ["currencyCode"]=> string(3) "TRY" ["id"]=> int(2406830272) ["sku"]=> string(21) "hemenadrese-barkod-14" ["vatBaseAmount"]=> float(20) ["barcode"]=> string(21) "hemenadrese-barkod-14" ["orderLineItemStatusName"]=> string(11) "ReadyToShip" ["price"]=> float(58.9) ["fastDeliveryOptions"]=> array(0) { } } } ["orderDate"]=> int(1691501143149) ["tcIdentityNumber"]=> string(11) "11111111111" ["currencyCode"]=> string(3) "TRY" ["packageHistories"]=> array(2) { [0]=> object(stdClass)#11 (2) { ["createdDate"]=> int(1691490345552) ["status"]=> string(8) "Awaiting" } [1]=> object(stdClass)#12 (2) { ["createdDate"]=> int(1691490345887) ["status"]=> string(7) "Created" } } ["shipmentPackageStatus"]=> string(11) "ReadyToShip" ["status"]=> string(7) "Created" ["deliveryType"]=> string(6) "normal" ["timeSlotId"]=> int(0) ["scheduledDeliveryStoreId"]=> string(0) "" ["estimatedDeliveryStartDate"]=> int(1691490342000) ["estimatedDeliveryEndDate"]=> int(1692267942000) ["totalPrice"]=> float(58.9) ["deliveryAddressType"]=> string(8) "Shipment" ["agreedDeliveryDate"]=> int(1691663145885) ["fastDelivery"]=> bool(false) ["originShipmentDate"]=> int(1691490345539) ["lastModifiedDate"]=> int(1691490345887) ["commercial"]=> bool(false) ["fastDeliveryType"]=> string(0) "" ["deliveredByService"]=> bool(false) ["agreedDeliveryDateExtendible"]=> bool(false) ["extendedAgreedDeliveryDate"]=> int(0) ["agreedDeliveryExtensionEndDate"]=> int(0) ["agreedDeliveryExtensionStartDate"]=> int(0) ["warehouseId"]=> int(5538176) ["groupDeal"]=> bool(false) ["micro"]=> bool(false) } } }

Arkadaşlar yukarıda koyu olarak işaretlediğim orderDate ile gelen integer değeri PHP de nasıl tarih formatına çeviririm. bir fikri olan var mı.
date("Y-m-d H:i:s",strtotime($siparis->orderDate)) bu kod işe yaramadı. trendyolun sipariş api sonucu gelen datayı alıyorum tarih. 01.01.1970 geliyor