I have HTML file:

1.html

```
!DOCTYPE html>
<html>
    <head>
        <title>Password Reminder</title>
    </head>
    <body>

        <p>
        Dear user, your password expires in: <strong>$($days)</strong> days.
        </p>
    </body>
   </html>

```

I created function which reads file content and replace `$days` variable with actual variable value.

```
function ReadTemplate($days) {
    $template_content = Get-Content "C:\PasswordReminder\1.html" -Encoding UTF8 -Raw
    #$template_content = [IO.File]::ReadAllText($template)
    $template_content = $template_content -replace "{}",$days
    return $template_content
}

```

But when calling it

```
$content = ReadTemplate -days 2

```

Instead of Dear user, your password expires in: 2 days.

I'm getting

Dear user, your password expires in: **$($days)** days.

Instead of `$($days)` specified `{0}` but nothing