PowerShell script to copy a SharePoint Document Library to a Local Path

I wanted to have a PowerShell script that downloaded A Document Library’s contents to a local folder. This is what I put together.

Function JBM-SharePoint-CopyDocumentLibraryLocal {
PARAM([Parameter(Mandatory=$true)]$SiteURL,
    [Parameter(Mandatory=$true)]$DocumentLibrary,
    [Parameter(Mandatory=$true)]$Destination)
$spWeb = Get-SPWeb -Identity http://$SiteURL
$list = $spWeb.Lists[$DocumentLibrary]
foreach ($listItem in $list.Items)
{
    $DestinationPath = $listItem.Url.replace("$DocumentLibrary","$Destination").Replace("/","\")
    write-host "Downloading $($listItem.Name) -> $DestinationPath"

    if (!(Test-Path -path $(Split-Path $DestinationPath -parent)))
    {
        write-host "Createing $(Split-Path $DestinationPath -parent)"
        $dest = New-Item $(Split-Path $DestinationPath -parent) -type directory
    }
    $binary=$spWeb.GetFile($listItem.Url).OpenBinary()
    $stream = New-Object System.IO.FileStream($DestinationPath), Create
    $writer = New-Object System.IO.BinaryWriter($stream)
    $writer.write($binary)
    $writer.Close()
}
$spWeb.Dispose()