using a global variable in multiple functions powershell - powershell

Question

I have this code :
$Count=0
Function DryRun-UploadFile($DestinationFolder, $File, $FileSource, $Count)
{
if($FileSource -eq $null){
$FileSource = $Folder
}
$path= [String]$FileSource+'\'+$File
$Size = get-item $Path
$Size = $Size.length
if($Size -lt 160000){
Write-Host "Passed"
}else{
$Count=$Count+1
}
}
function DryRun-PopulateFolder($ListRootFolder, $FolderRelativePath, $Count)
{
Write-Host "Uploading file " $file.Name "to" $WorkingFolder.name -ForegroundColor Cyan
if(!($File -like '*.txt')){
#Upload the file
DryRun-UploadFile $WorkingFolder $File $FileSource $Count
}else{
$Count=$Count+1
}
}
}
Function DryRun-Copy-Files{
$AllFolders = Get-ChildItem -Recurse -Path $Folder |? {$_.psIsContainer -eq $True}
#Get a list of all files that exist directly at the root of the folder supplied by the operator
$FilesInRoot = Get-ChildItem -Path $Folder | ? {$_.psIsContainer -eq $False}
#Upload all files in the root of the folder supplied by the operator
Foreach ($File in ($FilesInRoot))
{
#Notify the operator that the file is being uploaded to a specific location
Write-Host "Uploading file " $File.Name "to" $DocLibName -ForegroundColor Cyan
if(!($File -like '*.txt')){
#Upload the file
DryRun-UploadFile($list.RootFolder) $File $null $Count
}else{
$Count=$Count+1
}
}
#Loop through all folders (recursive) that exist within the folder supplied by the operator
foreach($CurrentFolder in $AllFolders)
{
DryRun-PopulateFolder ($list.RootFolder) $FolderRelativePath $Count
}
Write-output "Number of files excluded is: "$Count | Out-file DryRun.txt -append
}
I have removed some of my code for simplicity sake as it has nothing to do with my problem. My code goes through a file structure and counts up if the file is above 160000 bytes or is a txt file. run calling DryRun-Copy-Files.
And I have a variable called $count which I want to use in all the functions and then output what the count is to a file.
The problem is it only counts in the first function DryRun-Copy-Files not in the others

Answer 1

define the variable with global:
$global:count=0
and use it in the functions (don't explicit pass it)