Append CSV output coding issue - powershell

Question

Hi i created the below script to audit local admin groups on remote hosts. It works fine, but since it only outputs the data after it has went through all the hosts, i am afraid the array will run out of buffer space before it has a chance to export to csv, so i have been trying to have it create and append the output from each host as it goes through the list except i cannot get the headers to display on the first line and append additonal lines below it. Below is the output i get when i try to append. The italicized words should be the headers and the other info should be listed in the next row. what am i doing wrong?
#{Server=pc1; Members=Administrator;DistinguishedName=DC=Domain,DC=com
This is how it should look. It looks this way if i dont append and i let it create the csv after it has finished going through the list of hosts
Server Members DistinguishedName
host1 Administrator;Admin2 DC=DOMAIN,DC=COM
$servers= get-content "C:\Scripts\AD Audits\Local Admin\workstations.txt"
$output = "c:\temp\local admin audit $CurrentDate.csv"
$results = #()
$disconnected = "Did not respond"
foreach($server in $servers)
{
$connected = Test-Connection $server -count 1 -quiet
if ($connected) {
"$server responded" | Out-File -append "c:\temp\LocalAdmin goodhosts $CurrentDate.txt"}
else {
"$server did not respond" | Out-File -append "c:\temp\LocalAdmin badhosts $CurrentDate.txt"}
$group =[ADSI]"WinNT://$server/Administrators"
$members = $group.Members() | foreach {$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null) }
$results += New-Object PsObject -Property #{
DistinguishedName = (get-adcomputer ($server) -properties * | select distinguishedname).distinguishedname
Server = $server
Members = $members -join ";"
}
$results | Export-Csv $Output -NoTypeInformation
}`
if($connected -eq $True) {
New-Object PSObject -Property #{
DistinguishedName = (Get-ADComputer $_).DistinguishedName
Server = $_
Members = $members -join ";"
}} else {write-host ""}

Answer 1

My suggestion is to use the pipeline rather than a foreach statement, so each object is written to the file as soon as it's processed.
$servers | ForEach-Object{
$connected = Test-Connection $_ -Count 1 -Quiet -ErrorAction SilentlyContinue
$state = if($connected) {"$_ responded"} else {"$_ did not respond"}
$state | Out-File -Append "c:\temp\LocalAdmin goodhosts $CurrentDate.txt"
$group =[ADSI]"WinNT://$_/Administrators,group"
$members = $group.Members() | ForEach-Object {$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null) }
if($connected)
{
New-Object PSObject -Property #{
DistinguishedName = (Get-ADComputer $_).DistinguishedName
Server = $_
Members = $members -join ";"
}
}
} | Export-Csv $Output -NoTypeInformation