ArrayAdd

$dcou = "ou=domain controllers,dc=name,dc=com"
$dcs = Get-ADComputer -searchbase $dcou -filter '*'
$array = "ServerName","Name","DisplayName","Installed","FeatureType","Path"
$array = += $targetobject
foreach($dc IN $dcs)
{
    Get-ADDomainController -Identity $dc.name
    $targetobject = Get-WindowsFeature -ComputerName DC03 | where-object { $_.Installed -eq $True }|select @{n='ServerName';e={[string]$dc.name}},Name,DisplayName,Installed,FeatureType,Path
    $array = $targetobject
}