PHP uses cookies to implement visit count statistics code_PHP tutorial

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global $count;
$count=1;
if(!isset($_COOKIE["visittime"])){ setcookie("visittime", date("y-m-d H:i:s"));
setcookie("visitcount",1); echo "Welcome to your first visit to the website!";
}
else{
setcookie ("visittime",date("y-m-d,H:i:s"),time()+60); $count=$_COOKIE['visitcount']+1;
setcookie("visitcount",$count) ; echo "The time you last visited the website was:".$_COOKIE['visittime'];
echo "
";
}
echo "Your first".$_COOKIE[' visitcount']."The time of visiting the website is:".date("y-m-d H:i:s");
?>
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