Question

i found that the result $request.ContentType is difference by using char[] and String.

$request = [System.Net.HttpWebRequest].create($URL)

$request.ContentType = [char[]] "application/x-www-url-formurlened"
$request.ContentType = "application/x-www-url-formurlened"

What is the different in the actual output to the server side, if I made a request like that using char[] and string?

it is so confusing…i guess it should be the same

thanks

Answer 1

I think I figured out the issue. Check this out:

PS D:\> $foo = "bar"
PS D:\> $foo
bar
PS D:\> $faz = [string][char[]]"baz"
PS D:\> $faz
b a z

Powershell will cast your char[] into a string, since HttpRequest.ContentType is of type string, but for when Powershell converts arrays to strings it inserts a the value of the special variable $OFS between each element. The help for about_special_variables has information on $OFS (and other things). The default for $OFS is a space which explains this behavior.

(Thanks to BartekB for pointing out $OFS in the comments.)