return

[Anon]

In the following snippet would someine please explain to me what "return" does.

*************<SNIPPET>*************
function sess_gc($maxlifetime) {
global $SESS_DBH;

$qry = "DELETE FROM sessions WHERE expiry < " . time();
$qid = mysql_query($qry, $SESS_DBH);

return mysql_affected_rows($SESS_DBH);

}
*************</SNIPPET>*************

Does this create a variable? or what?

[mrmufin]

It returns an integer representing the number of rows affected by the query.

[Anon]

What is the name of the $variable so I can see the results