.htaccess redirect all pages to new domain

Question

Which redirect rule would I use to redirect all pages under olddomain.example to be redirected to newdomain.example?

The site has a totally

Answer 1

My solution as SymLinks did not work on my server so I used an If in my PHP.

function curPageURL() {
    $pageURL = 'http';
    if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
    $pageURL .= "://";
    if ($_SERVER["SERVER_PORT"] != "80") {
        $pageURL .= $_SERVER["SERVER_NAME"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"];
    } else {
        $pageURL .= $_SERVER["SERVER_NAME"] . $_SERVER["REQUEST_URI"];
    }
    return $pageURL;
}
$redirect = str_replace("www.", "", curPageURL());
$remove_http_root    = str_replace('http://', '', $redirect);
$split_url_array     = explode('/', $remove_http_root );


if($split_url_array[0] == "olddomain.com"){
    header("Location: http://www.newdomain.com/$split_url_array[1]");
    die();
}