Cookie的结果不一致

Question

如果我多次按F5键（刷新），结果有时会有所不同，比如结果不一致，我只想要一个修复结果。直到现在我一直在寻找问题的解决但我仍然失败了，我不知道错误在哪里。

结果如下：

index.php图片：

的index.php：

<?php   
    include('c2gcon.php');
    include('logincheckmember.php');
    include('logincheckadmin.php');
    //include('urlmanage.php');

    //include('urlexplode.php');
    $urlget = $_GET['url'];
    $urlexplode = filter_var($urlget, FILTER_SANITIZE_STRING);
    $url = explode("/", $urlexplode);

    $urlsave=$url[0];
    //print_r($url);
    echo "urlsave=$urlsave<br>";
    if($urlsave=='home'){
        include('uc.php');
        include('coorand1.php');
        include('home.php');
    }else{
        echo "<script language=javascript> alert('gila lu')</script>"; 
        echo "<br><br><br>gila lu keong<br>";
        include('uc.php');
        include('coorand2.php');
        include('home.php');
    }
?>

REFFERENCE： coorand1.php和coorand2.php