如何从JSON对象数组中提取值

Question

I am having a hard time extracting a value from the following JSON object

array(3) { [0]=> object(stdClass)#1 (11) { ["Group"]=> string(2) "18" ["GroupName"]=> string(8) "Wireline" ["Region"]=> string(2) "15" ["RegionName"]=> string(8) "Atlantic" ["Province"]=> string(1) "1" ["ProvinceName"]=> string(13) "New Brunswick" ["City"]=> string(2) "11" ["CityName"]=> string(10) "Campbelton" ["Site"]=> string(2) "37" ["SiteName"]=> string(16) "Campbellton PNCT" ["Year"]=> string(4) "2016" } 
           [1]=> object(stdClass)#2 (5) { ["PlatformID"]=> string(1) "1" ["PlatformTag"]=> string(6) "Access" ["Rack"]=> string(24) "23" Width 36" Depth Rack" ["RackValue"]=> string(1) "2" ["Comments"]=> string(0) "" } 
           [2]=> object(stdClass)#3 (12) { ["Rack"]=> string(31) "23" Width 36" Depth Rack Access" ["RackValue"]=> string(1) "2" ["RackComments"]=> string(0) "" ["Manufacturer"]=> string(6) "werwer" ["Name"]=> string(6) "werwer" ["Quantity"]=> string(1) "1" ["RackUnits"]=> string(1) "1" ["Power"]=> string(1) "1" ["ActivePassive"]=> string(6) "Active" ["ACDC"]=> string(2) "AC" ["ConnectivityIDs"]=> array(1) { [0]=> string(1) "2" } ["Connectivity"]=> array(1) { [0]=> string(5) "Fiber" } } } 

I am trying to extract each item in a foreach loop within PHP Above is the var_dump of the $data[0] JSON object it demonstrates what the Array item looks like.

My foreach is the following

$data = json_decode($_POST["submitdata"]);
      $Forecasts = $data[0];    
foreach($Forecasts as $Forecast){
    echo($Forecast->PlatformID);}

but it returns nothing as a result. Can someone explain to me how to get this from the second Array in the object?

Answer 1

simply place the Index of the inner array along with the object as shown below. This will check for the sub item for the PlatformID and return it to the screen.

foreach($Forecasts as $Forecast){
    echo($Forecast[1]->PlatformID);}