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ini_set('session.use_cookies', '0');
ini_set("session.use_only_cookies","0");
session_start();
$_SESSION['a']='abc';
$a='b';
print_r($_GET);
if(empty($_GET['PHPSESSID'])) {
$uid = session_id();
echo "<script>alert('$uid')</script>";
echo "<script>location = '?PHPSESSID=$uid'</script>";
}else {
echo $_SESSION['a'];
}