用cookie显示浏览历史时， unserialize出错解决思路

用cookie显示浏览历史时， unserialize出错

PHP code

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<?php $id = $_GET['id']+0;

echo '<a href="history.php?id=' . ($id-1) . '">上一页<br>';
echo '<br><a href="history.php?id='%20.%20(%24id+1)%20.%20'">下一页</a>';

    

if(isset($_COOKIE['his'])) {
    //echo $_COOKIE['his'];exit;
    $data = unserialize($_COOKIE['his']);
    $url = $_SERVER['REQUEST_URI'];
    $data[] = $url;
    $data = array_unique($data);
    
   
    if(count($data) >10) {
        array_shift($data);
    }
    
    $urls = serialize($data);
    setcookie('his',$urls,time()*2*24*3600);

} else {
    $url = $_SERVER['REQUEST_URI'];
    $data[] = $url;
    $urls = serialize($data);
    setcookie('his',$urls,time()*2*24*3600);
}


?>

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• 浏览历史

HTML code

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Notice: unserialize() [function.unserialize]: Error at offset 9 of 41 bytes in D:\server\apache\www\20120413\history.php on line 16

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