Translating PHP to Powershell

Question

I'm currently translating a PHP script to Powershell, and I'm stuck at the following part:

$data = array();
foreach($extension_data as $key=>$value){
   array_push($data,array("name"=>$key,"value"=>$value));
}

Especially, what would the $key=>$value part look like in PowerShell?

EDIT: here's my solution

    $data = @()
        foreach($e in $extension_data.getenumerator()){
            $data += @{"name" = $($e.name); "value"=$($e.value)}
        }