Function passing variables

function abc ($idtag) {

$a = $idtag

}

foreach ($item in $list) {

abc $idtag

write-host $a

}

above code doesnt work. how pass value back?

start here: https://technet.microsoft.com/en-us/scriptcenter/dd793612.aspx?f=255&mspperror=-2147217396

i recommend searching site on basic programming.  question generic.  return value have pass back.  need learn scope

seach functions , scope.

type "help help" , learn use built in system.

those first steps.

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\_(ツ)_/

Windows Server  >  Windows PowerShell