主頁 > 作業系統 > PHP問題通過索引訪問物件陣列-不起作用但似乎應該

PHP問題通過索引訪問物件陣列-不起作用但似乎應該

2022-05-20 17:34:08 作業系統

簡短的版本是我有一個物件陣列，這些物件是從 Web 服務的 JSON 回應中解碼的，盡管我盡了最大努力，但我無法通過索引訪問該陣列中的物件。

我專門將回應解碼為：

$ResponseInfo = json_decode($ResponseBody, false);  //give to me as an object

在訪問作為物件陣列的屬性之前，我訪問結果物件的屬性沒有問題。就背景關系而言，它是包含一棟或多棟建筑物的詳細資訊的房產資訊。

我希望能夠通過索引訪問建筑物的詳細資訊，例如：

$ac = $ResponseInfo->building[0]->airConditioning;

這不起作用。我得到一個未定義的索引 0。奇怪的是，array_keys 給了我：

陣列（ [0] => 0 ）

所以看起來 index 方法應該可以作業，而且它不是什么奇怪的鍵，但可惜它沒有。

print_r 給了我這個：

Array ( [0] => stdClass Object ( [airConditioning] => Central [foundation] => [architecturalStyle] => Ranch/Rambler [yearBuilt] => 1965 [fireplace] => [noOfUnits] => 1 [effectiveYearBuilt] => [sewer] => Municipal/Public [heating] => Central [class] => [comments] => [quarterBaths] => [totalStories] => 1 [kitchens] => 2 [water] => Municipal/Public [classDescription] => [quality] => C- [totalRooms] => 5 [bedrooms] => 3 [condition] => Average [baths] => [threeQuarterBaths] => [halfBaths] => [occupancyStatus] => [fullBaths] => 1 ) ) Array ( [0] => BuildingInformationObject Object ( [airConditioning] => Central [foundation] => [architecturalStyle] => Ranch/Rambler [yearBuilt] => 1965 [fireplace] => [noOfUnits] => 1 [sewer] => Municipal/Public [heating] => Central [totalStories] => 1 [kitchens] => 2 [water] => Municipal/Public [totalRooms] => 5 [bedrooms] => 3 [condition] => Average [halfBaths] => [occupancyStatus] => [fullBaths] => 1 ) )

我也嘗試將陣列分配給一個新變數，但我仍然得到未定義的索引 0。

$BuildingInfo  = $ResponseInfo->building;

奇怪的是，起作用的是：

foreach ($BuildingInfo as $ThisBuilding) {

以這種方式，$ThisBuilding-airconditioning（或任何屬性）作業正常。所以我什至嘗試創建一個全新的陣列并手動分配各個屬性，如下所示：

$Buildings = array();
$i = 0;

foreach ($BuildingInfo as $ThisBuilding)
{
    $Buildings[$i] = new BuildingInformationObject();
    //$Buildings[$i] = $ThisBuilding;     //just assigning variable didn't work, so copied properties manually
    
    $Buildings[$i]->airConditioning    = $ThisBuilding->airConditioning;   
    $Buildings[$i]->foundation         = $ThisBuilding->foundation;        
    $Buildings[$i]->architecturalStyle = $ThisBuilding->architecturalStyle;

ETC..

畢竟，嘗試 $Buildings[0]->airConditioning 仍然會給我可怕的索引 0 undefined，即使在新陣列上也是如此。

我什至嘗試了以下形式的東西

echo $data->{'0'}->UserName;

如：

$BuildingInfo->{'0'}->airConditioning;

我在這里找到的。這種方法顯然對舊版本的 PHP 有效，但現在不起作用。

我到底在這里想念什么？謝謝你的幫助。

史蒂夫

編輯：我意識到我可以將 json_decode 更改為簡單地回傳一個陣列，然后將其作為多維陣列處理，但我試圖避免重寫一堆代碼。我最終要處理 JSON 回應中的數百個物件屬性，而我唯一遇到的問題是物件陣列的屬性。

編輯 2：由于它的大小，我不愿意添加它，但作為對評論的回應，這是我正在處理的 JSON。我不想嘗試減少它，因為害怕無意中洗掉導致我的問題的任何東西。如果有更好的方法來分享大量不受干擾的 JSON，請告訴我。

編輯 3：作為對構建陣列不在 JSON 中的評論的回應，我將以下 JSON 從該站點剪切并粘貼到https://jsonformatter.org/json-parser并在樹視圖中查看 JSON。我需要通過索引訪問的構建陣列實際上在這個 JSON 中。

{"success":true,"status":200,"bundle":[{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2016,"marketLandValue":26930,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2014,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2016,"marketTotalValue":89400,"taxID":"458467","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2016","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":62470,"totalValue":31290,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":9430,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":21860,"taxAmount":1701.78,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2016"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2008,"marketLandValue":29380,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2008,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2008,"marketTotalValue":112120,"taxID":"320818","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2008","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":82740,"totalValue":39242,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":10283,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":28959,"taxAmount":1143.66,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2008"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2005,"marketLandValue":24950,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2005,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2005,"marketTotalValue":107700,"taxID":null,"taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2005","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":82750,"totalValue":37696,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":8733,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":28963,"taxAmount":1631.24,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2005"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2002,"marketLandValue":23760,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2002,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2002,"marketTotalValue":102590,"taxID":null,"taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2002","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":78830,"totalValue":35907,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":8316,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":27591,"taxAmount":1352.82,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2002"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2011,"marketLandValue":29380,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2011,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2011,"marketTotalValue":103050,"taxID":"60577","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2011","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":73670,"totalValue":36068,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":10283,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":25785,"taxAmount":1591.38,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2011"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2010,"marketLandValue":29380,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2010,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2010,"marketTotalValue":105520,"taxID":"475393","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2010","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":76140,"totalValue":36932,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":10283,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":26649,"taxAmount":1159.18,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2010"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2007,"marketLandValue":24950,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2007,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2007,"marketTotalValue":107700,"taxID":"61840","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2007","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":82750,"totalValue":37696,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":8733,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":28963,"taxAmount":1258.38,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2007"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2014,"marketLandValue":26930,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2014,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2013,"marketTotalValue":89400,"taxID":"121009","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2014","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":62470,"totalValue":31290,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":9430,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":21860,"taxAmount":1678.56,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2014"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2003,"marketLandValue":23760,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2003,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2003,"marketTotalValue":102590,"taxID":null,"taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2003","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":78830,"totalValue":35907,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":8316,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":27591,"taxAmount":1380.02,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2003"},{"landUseDescription":"Single Family Residential","zoningDescription":null,"year":2009,"marketLandValue":29380,"numberOfBuildings":1,"lotSizeIrregular":"85 X 138","county":"Butler County","pools":[],"censusTract":"390170118002005","areas":[{"areaSquareFeet":1492,"type":"Living Building Area"},{"areaSquareFeet":1144,"type":"Base Building Area"},{"areaSquareFeet":1140,"type":"Adjusted Building Area"},{"areaSquareFeet":1492,"type":"Zillow Calculated Finished Area"},{"areaSquareFeet":348,"type":"Addition Area"}],"building":[{"airConditioning":"Central","foundation":null,"architecturalStyle":"Ranch/Rambler","yearBuilt":1965,"fireplace":null,"noOfUnits":1,"effectiveYearBuilt":null,"sewer":"Municipal/Public","heating":"Central","class":null,"comments":null,"quarterBaths":null,"totalStories":1,"kitchens":2,"water":"Municipal/Public","classDescription":null,"quality":"C-","totalRooms":5,"bedrooms":3,"condition":"Average","baths":null,"threeQuarterBaths":null,"halfBaths":null,"occupancyStatus":null,"fullBaths":1}],"lotSizeFrontage":null,"parcelID":"112166032","marketValueYear":2009,"lotTopography":"Rocky","ownerName":["ROBERT D SUTTON"],"taxYear":2009,"marketTotalValue":105520,"taxID":"478717","taxExemption":null,"legal":{"phase":null,"tract":null,"city":null,"municipality":null,"section":null,"lot":null,"otherLot":null,"unit":null,"lotDescription":"1141 ENT","district":null,"block":null,"subdivisionName":null,"township":null},"id":"112166032-2009","state":"OH","lotSizeDepth":null,"apn":"R8000-017.000-071","marketImprovementValue":76140,"totalValue":36932,"address":{"zip":"45067","city":"Trenton","zip4":"1117","streetPre":null,"house":"431","unitType":null,"unit":null,"street":"Kenwood","houseExt":null,"streetSuffix":"Ln","state":"OH","streetPost":null,"full":" 431 Kenwood Ln Trenton OH 45067"},"landUseCode":"RR101","landUseGeneral":"RR","coordinates":[-84.465074,39.489885],"zpid":"33237764","fips":"39017","landValue":10283,"zoningCode":null,"lotSizeAcres":0.27,"garages":[],"improvementValue":26649,"taxAmount":1154,"lotSizeSquareFeet":11761.2,"url":"api.bridgedataoutput.com/api/v2/pub/assessments/112166032-2009"}],"total":21}

uj5u.com熱心網友回復：

這篇文章是一個垃圾節目，所以很抱歉，如果我只是瀏覽了一下，請使用代碼塊，這樣我們才能真正解決問題，而不是在我們面前發送一堆垃圾資料，這些資料很可能無用手頭的問題。

似乎您正在使用stdClass Object它可能會讓您失望（此時只是猜測）。

如果要將資料完全轉換為 stdClass 物件或完全轉換為陣列以便于管理；您可以使用以下任一功能：

function array_to_stdClass(&$array){
    $tmp = $array;
    $array = new stdClass();
    foreach($tmp as $k => $v) $array->$k = (!is_object($v) && !is_array($v)) ? $v:array_to_stdClass($v);
    return $array;
}

function stdClass_to_array(&$stdClass){
    $tmp = $stdClass;
    $stdClass = array();
    foreach($tmp as $k => $v) $stdClass[$k] = (!is_object($v) && !is_array($v)) ? $v:stdClass_to_array($v);
    return $stdClass;
}

現場演示/示例：https ://onlinephp.io/c/2d00a

uj5u.com熱心網友回復：

好。我是個白癡。感謝所有看過的人。對不起，我浪費了你的時間。

訪問我需要的資料的正確方法其實是：

$ResponseInfo->bundle[0]->building[0]->airConditioning;

當然調整到正確的變數和成員。我遇到問題的原因是我的視野狹隘，當我試圖將代碼簡化為最簡單的元素時，我并沒有完全這樣做。

特別是，我試圖除錯的代碼在回圈中被重復呼叫以提取屬性資訊，當我簡化事情時，我忘記了這一點。我的測驗是提取五個屬性的資料，我專注于第一個，它的資料是正確的，并且被我和其他人驗證可以重復作業。

然而，回圈中的第二個屬性并沒有發揮得那么好。事實證明，為該屬性回傳的 JSON 資料實際上缺少我需要的元素。這當然是一個完全不同的問題。

僅僅因為拋出了一個錯誤，并不一定意味著它是導致它的回圈的第一次迭代，而我卻忽略了這一點。盡管我正在處理的代碼是如此模塊化，但作為我的克星的回圈已完全從我關注的例程中移除。

我可能應該剛剛洗掉這個問題，但我認為那些花時間看它的人會很感激跟進，也許它會幫助其他人在故障排除時考慮更大的圖景。

再次感謝大家。史蒂夫

uj5u.com熱心網友回復：

將 JSON 解碼為 php 是一項繁瑣的操作：它是 Javascript 馬和 php 驢之間的交叉。所以我認為它可能會有點令人困惑，如果不是固執的話。

這里有兩種方法可以將埋在 JSON 物件中的平方英尺相加。

/* php objects */
$ResponseInfo = json_decode( $json, false );
$sqft = 0;
foreach ( $ResponseInfo->bundle as $bundle ) {
  foreach ( $bundle->areas as $area ) {
    $sqft  = $area->areaSquareFeet;
  }
}

/* php traditional associative arrays */
$ResponseInfo = json_decode( $json, true );
$sqft         = 0;
foreach ( $ResponseInfo['bundle'] as $bundle ) {
  foreach ( $bundle['areas'] as $area ) {
    $sqft  = $area['areaSquareFeet'];
  }
}

無論哪種情況，當您從$ResponseInfo輸出開始時，json_decode您必須顯式地從該物件的頂層導航到您需要的資料。這種表達方式不會那樣做。

$sqft = $ResponseInfo->building[0]->squarefeet;

building不是該解碼物件的成員，并且squarefeet您的 JSON 中沒有呼叫任何成員。

編輯

此運算式訪問 JSON 中第一個捆綁物件中的第一個構建物件（當解碼為 php 物件時）。

$ResponseInfo->bundle[0]->building[0]->airConditioning;

如您所知，API 回應的有效負載位于一個名為bundle. （頂層回應中的其他內容是顯示請求狀態的 API 包裝器。）因此，上面的運算式查看捆綁陣列的第一個元素以找到構建陣列。然后它查看構建陣列的第一個元素以找到名為 的物件屬性noOfUnits。

我應該解釋我做了什么——我是如何得出答案的。我有啟用 JSON 格式化程式插件的記事本 。我將您的 JSON 放入該編輯器中的草稿檔案中并對其進行格式化。然后，逐級探索您的 JSON 物件變得很容易。

php 物件有一個不幸的屬性，即參考$object->undefined回傳 null 而不是拋出錯誤。并且 a foreach()on a null 只是回圈零次。

轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/478584.html

標籤：php 数组 目的 索引

上一篇：如何在foreach函式中獲取父物件屬性

下一篇：我很難使用dart/flutter從json映射中的嵌套物件獲取資料

標籤雲
其他(157675) Python(38076) JavaScript(25376) Java(17977) C(15215) 區塊鏈(8255) C＃(7972) AI(7469) 爪哇(7425) MySQL(7132) html(6777) 基礎類(6313) sql(6102) 熊猫(6058) PHP(5869) 数组(5741) R(5409) Linux(5327) 反应(5209) 腳本語言(PerlPython)(5129) 非技術區(4971) Android(4554) 数据框(4311) css(4259) 节点.js(4032) C語言(3288) json(3245) 列表(3129) 扑(3119) C++語言(3117) 安卓(2998) 打字稿(2995) VBA(2789) Java相關(2746) 疑難問題(2699) 细绳(2522) 單片機工控(2479) iOS(2429) ASP.NET(2402) MongoDB(2323) 麻木的(2285) 正则表达式(2254) 字典(2211) 循环(2198) 迅速(2185) 擅长(2169) 镖(2155) 功能(1967) .NET技术(1958) Web開發(1951) python-3.x(1918) HtmlCss(1915) 弹簧靴(1913) C++(1909) xml(1889) PostgreSQL(1872) .NETCore(1853) 谷歌表格(1846) Unity3D(1843) for循环(1842)

熱門瀏覽
  • CA和證書

    1、在 CentOS7 中使用 gpg 創建 RSA 非對稱密鑰對 gpg --gen-key #Centos上生成公鑰/密鑰對（存放在家目錄.gnupg/） 2、將 CentOS7 匯出的公鑰，拷貝到 CentOS8 中，在 CentOS8 中使用 CentOS7 的公鑰加密一個檔案 gpg -a ......

    uj5u.com 2020-09-10 00:09:53 more
  • Kubernetes K8S之資源控制器Job和CronJob詳解

    Kubernetes的資源控制器Job和CronJob詳解與示例 ......

    uj5u.com 2020-09-10 00:10:45 more
  • VMware下安裝CentOS

    VMware下安裝CentOS 一、軟硬體準備 1 Centos鏡像準備 1.1 CentOS鏡像下載地址 下載地址 1.2 CentOS鏡像下載程序 點擊下載地址進入如下圖的網站，選擇需要下載的版本，這里選擇的是Centos8，點擊如圖所示。 決定選擇Centos8后，選擇想要的鏡像源進行下載，此 ......

    uj5u.com 2020-09-10 00:12:10 more
  • 如何使用Grep命令查找多個字串

    如何使用Grep 命令查找多個字串 大家好，我是良許！ 今天向大家介紹一個非常有用的技巧，那就是使用 grep 命令查找多個字串。 簡單介紹一下，grep 命令可以理解為是一個功能強大的命令列工具，可以用它在一個或多個輸入檔案中搜索與正則運算式相匹配的文本，然后再將每個匹配的文本用標準輸出的格式 ......

    uj5u.com 2020-09-10 00:12:28 more
  • git配置http代理

    git配置http代理 經常遇到克隆 github 慢的問題，這里記錄一下幾種配置 git 代理的方法，解決 clone github 過慢。 目錄 git配置代理 git單獨配置github代理 git配置全域代理 配置終端環境變數 git配置代理 主要使用 git config 命令 git單獨 ......

    uj5u.com 2020-09-10 00:12:33 more
  • Linux npm install 裝包時提示Error EACCES permission denied解

    npm install 裝包時提示Error EACCES permission denied解決辦法 ......

    uj5u.com 2020-09-10 00:12:53 more
  • Centos 7下安裝nginx，使用yum install nginx，提示沒有可用的軟體包

    Centos 7下安裝nginx，使用yum install nginx，提示沒有可用的軟體包。 18 (flaskApi) [root@67 flaskDemo]# yum -y install nginx 19 已加載插件：fastestmirror, langpacks 20 Loading ......

    uj5u.com 2020-09-10 00:13:13 more
  • Linux查看服務器暴力破解ssh IP

    在公網的服務器上經常遇到別人爆破你服務器的22埠，用來挖礦或者干其他嘿嘿嘿的事情~ 這種情況下正確的做法是： 修改默認ssh的22埠 使用設定密鑰登錄或者白名單ip登錄 建議服務器密碼為復雜密碼 創建普通用戶登錄服務器（root權限過大） 建立堡壘機，實作統一管理服務器 統計爆破IP [root ......

    uj5u.com 2020-09-10 00:13:17 more
  • CentOS 7系統常見快捷鍵操作方式

    Linux系統中一些常見的快捷方式，可有效提高操作效率，在某些時刻也能避免操作失誤帶來的問題。 ......

    uj5u.com 2020-09-10 00:13:31 more
  • CentOS 7作業系統目錄結構介紹

    作業系統存在著大量的資料檔案資訊，相應檔案資訊會存在于系統相應目錄中，為了更好的管理資料資訊，會將系統進行一些目錄規劃，不同目錄存放不同的資源。 ......

    uj5u.com 2020-09-10 00:13:35 more
最新发布
  • vim的常用命令

    Vim的6種基本模式 1. 普通模式在普通模式中，用的編輯器命令，比如移動游標，洗掉文本等等。這也是Vim啟動后的默認模式。這正好和許多新用戶期待的操作方式相反（大多數編輯器默認模式為插入模式）。 2. 插入模式在這個模式中，大多數按鍵都會向文本緩沖中插入文本。大多數新用戶希望文本編輯器編輯程序中一 ......

    uj5u.com 2023-04-20 08:43:21 more
  • vim的常用命令

    Vim的6種基本模式 1. 普通模式在普通模式中，用的編輯器命令，比如移動游標，洗掉文本等等。這也是Vim啟動后的默認模式。這正好和許多新用戶期待的操作方式相反（大多數編輯器默認模式為插入模式）。 2. 插入模式在這個模式中，大多數按鍵都會向文本緩沖中插入文本。大多數新用戶希望文本編輯器編輯程序中一 ......

    uj5u.com 2023-04-20 08:42:36 more
  • docker學習

    ###Docker概述 真實專案部署環境可能非常復雜，傳統發布專案一個只需要一個jar包，運行環境需要單獨部署。而通過Docker可將jar包和相關環境（如jdk，redis，Hadoop...）等打包到docker鏡像里，將鏡像發布到Docker倉庫，部署時下載發布的鏡像，直接運行發布的鏡像即可。 ......

    uj5u.com 2023-04-19 09:26:53 more
  • 設定Windows主機的瀏覽器為wls2的默認瀏覽器

    這里以Chrome為例。 1. 準備作業 wsl是可以使用Windows主機上安裝的exe程式，出于安全考慮，默認情況下改功能是無法使用。要使用的話，終端需要以管理員權限啟動。 我這里以Windows Terminal為例，介紹如何默認使用管理員權限打開終端，具體操作如下圖所示： 2. 操作 wsl ......

    uj5u.com 2023-04-19 09:25:49 more
  • docker學習

    ###Docker概述 真實專案部署環境可能非常復雜，傳統發布專案一個只需要一個jar包，運行環境需要單獨部署。而通過Docker可將jar包和相關環境（如jdk，redis，Hadoop...）等打包到docker鏡像里，將鏡像發布到Docker倉庫，部署時下載發布的鏡像，直接運行發布的鏡像即可。 ......

    uj5u.com 2023-04-19 09:19:04 more
  • Linux學習筆記

    IP地址和主機名 IP地址 ifconfig可以用來查詢本機的IP地址，如果不能使用，可以通過install net-tools安裝。 Centos系統下ens33表示主網卡；inet后表示IP地址；lo表示本地回環網卡； 127.0.0.1表示代指本機；0.0.0.0可以用于代指本機，同時在放行設 ......

    uj5u.com 2023-04-18 06:52:01 more
  • 解決linux系統的kdump服務無法啟動的問題

    問題：專案麒麟系統服務器的kdump服務無法啟動，沒有相關日志無法定位問題。 1、查看服務狀態是關閉的，重啟系統也無法啟動 systemctl status kdump 2、修改grub引數，修改“crashkernel”為“512M（有的機器數值太大太小都會導致報錯，建議從128M開始試，或者加個 ......

    uj5u.com 2023-04-12 09:59:50 more
  • 解決linux系統的kdump服務無法啟動的問題

    問題：專案麒麟系統服務器的kdump服務無法啟動，沒有相關日志無法定位問題。 1、查看服務狀態是關閉的，重啟系統也無法啟動 systemctl status kdump 2、修改grub引數，修改“crashkernel”為“512M（有的機器數值太大太小都會導致報錯，建議從128M開始試，或者加個 ......

    uj5u.com 2023-04-12 09:59:01 more
  • 你是不是暴露了？

    作者：袁首京 原創文章，轉載時請保留此宣告，并給出原文連接。 如果您是計算機相關從業人員，那么應該經歷不止一次網路安全專項檢查了，你肯定是收到過資訊系統技術檢測報告，要求你加強風險監測，確保你提供的系統服務堅實可靠了。 沒檢測到問題還好，檢測到問題的話，有些處理起來還是挺麻煩的，尤其是線上正在運行的 ......

    uj5u.com 2023-04-05 16:52:56 more
  • 細節拉滿，80 張圖帶你一步一步推演 slab 記憶體池的設計與實作

    1. 前文回顧 在之前的幾篇記憶體管理系列文章中，筆者帶大家從宏觀角度完整地梳理了一遍 Linux 記憶體分配的整個鏈路，本文的主題依然是記憶體分配，這一次我們會從微觀的角度來探秘一下 Linux 內核中用于零散小記憶體塊分配的記憶體池 —— slab 分配器。 在本小節中，筆者還是按照以往的風格先帶大家簡單 ......

    uj5u.com 2023-04-05 16:44:11 more

Copyright © 2010-2020 有解無憂