将powershell结果发送到HTTP

Question

Sorry for being a newbie in this, but I want to learn something about sending powershell results to a PHP page for later processing.

I tried this code:

$test1 = "test"
$postParams = @{test=$test1}
Invoke-WebRequest -Uri http://bu01/stats/input.php -Method POST -Body $postParams

Which works fine, PHP receives the string test in $_POST['test']

But when trying to parse more data, like this:

$test1 = Get-WMIobject win32_logicaldisk | select-object DeviceID,FreeSpace,Size
$postParams = @{test=$test1}
Invoke-WebRequest -Uri http://bu01/stats/input.php -Method POST -Body $postParams

All result I got is "System.Object[]".

Please explain how to send it to PHP.

Thanks!

UPDATE: Thanks for your tips. I made the following script with foreach to post each "row" in a seperate web request. Which works fine for now. No longer testing with hdd space, but with whitespace in Exchange DB's, but the idea is the same.

$dbs = Get-MailboxDatabase -Status | select-object Name, DatabaseSize, AvailableNewMailboxSpace 
foreach ($a in $dbs){
  $data = $a.Name+','+$a.DatabaseSize.ToKB()+','+$a.AvailableNewMailboxSpace.ToKB()
  $postParams = @{data=$data}
  Invoke-WebRequest -Uri http://bu01/stats/input.php -Method POST -Body $postParams
}

Maybe someone has a good tip to transform this into one request? This is much more efficient for the web server.

Answer 1

Essentially, your first example could be coerced into a HTTP request, as it's a simple bit of text. Your second example, however, is resulting in a (guess what?) System.Object object. PowerShell is then failing to do type coercion for you, as the HTTP payload needs to be something textual. If you were to do something like $test1[0].DeviceID.toString(), that would most likely work - for the first object, atleast. BTW, the .toString() may not be needed - it depends on the 'type' of the DeviceID attribute. To determine this, do $test1[0].DeviceID.GetType().

If you need to process each instance returned by your WMI call, you'll need to use Foreach-Object{}, posting each instance separately. OR... use the Foreach-Object{} to concatenate the relevant information, and post it as one, suitably delimited, text string.

You may also need to use UrlEncode (.NET call) to encode any odd characters in your data.