Receive gateway from local network interface with PowerShell

PowerShell Version: >1
Modules: none

I needed a way to log the first local interface’s gateway for debugging reasons, here is how I did it:

$netcards = Get-WmiObject Win32_NetworkAdapterConfiguration
# reset the array with every run of the script
$netcard_gateway_array = @()
    # ...we might have more than one network interface present
    foreach ($netcard in $netcards)
        {
        # don't show interfaces without default gw
        if ($netcard.DefaultIPGateway -ne $null)
            {
            # for more than one interface present we need an array to store the information
            $netcard_gateway_array += $netcard.DefaultIPGateway
            }
        }
# receive only the first interface's gateway
$netcard_gateway_array[0]