echo $begrüßung;
<?php
echo "<a href="index.php?".session_name()."=".session_id()."">test</a>\n";
setcookie(session_name(), session_id(), time()+3600);
Why do you want to reinvent the wheel? You can use
<?php
session_set_cookie_params(3600);
session_start();
echo '<a href="index.php?', SID, "\">test</a>\n";
The constant SID is predefined as session_name=session_id. It only exists if the browser didn't send a cookie.
echo "$verabschiedung $name";