About some code PHP

I already have 2 codes that work But I want to modify a little The first code works without problems, but I want to add cookies with this code With the other code, it works with a cookie system, but it spoils an important thing <?php $domainRedirect = '[login to view URL]'; if( ($_SERVER['HTTP_HOST'] != $domainRedirect) ){ header("HTTP/1.1 301 Moved Permanently"); header("Location: http://".$domainRedirect.$_SERVER['REQUEST_URI']); exit; } ?> This domain transfers visitors from the old domain to the new domain while preserving the source of the visit What is meant by that? If the visitor entered the old domain through YouTube, It has been transferred to the new domain Shows stats for the new domain in google analytics The visitor is from YouTube But I can't add cookies to this code The other code works very well with cookies The visitor is transferred to the new domain But it makes the source of the visit direct not really source include '[login to view URL]'; $newlink = $link->alias; $referr = $refpage.$newlink; if($reftern==1){ if ( strpos($_SERVER["HTTP_REFERER"], $ref) !== false){ setcookie("shardnat", "shardnat", time()+ 60); setcookie("jasem", "jasem", time()+ 60); if ( isset($_COOKIE['shardnat']) ) { } else { $_COOKIE['shardnat'] = 'shardnat'; $_COOKIE['jasem'] = 'jasem'; } } else{ //echo "your referr no Good "; } if($_COOKIE['jasem'] ==null ){ Redirect($referr,false); }else{ } } function Redirect($url, $permanent = false) { if (headers_sent() === false) { header('Location: ' . $url, true, ($permanent === true) ? 301 : 302); } exit(); } ?> <?php $reftern = 1; $ref = "[login to view URL]"; $refpage = " [login to view URL]"; ?> I want help moving the cookies system from the second code to the first code Or transfer the feature to keep the source of the visit from the first code to the second code I hope I explained well And if you want to ask, please