PHP save array in cookie

Question

I want to shuffle an array then serialized it and save it as a cookie.

$random_ads = array(
    '<li><a href="#">Test 1</a></li>',
    '<li><a href="#">Test 2</a></li>',
    '<li><a href="#">Test 3</a></li>'
);
shuffle($random_ads);
$ra_serialized = serialize($random_ads);
setcookie('random_ads', $ra_serialized, time()+3600*24, '/');

Then I tried to use unserialized($_COOKIE['random_ads']) and print the array, but did not work. It print nothing. Please give me some ideas. The main thing I want is to save the array in cookie and get it back when I want. Thanks.

Answer 1

try this

$random_ads = array(
    '<li><a href="#">Test 1</a></li>',
    '<li><a href="#">Test 2</a></li>',
    '<li><a href="#">Test 3</a></li>'
);
shuffle($random_ads);
$ra_serialized = serialize($random_ads);
setcookie('random_ads', $ra_serialized, time()+3600*24, '/');
$getarray = unserialize($_COOKIE['random_ads']);
foreach($getarray as $getarray1)
{
    echo $getarray1;
}

Answer 2

您可以使用json_encode（$ random_ads）或仅加入（'|'，$ random_ads），然后在客户端进行解析。

Answer 3

After browsing for some hours, I found this solution and it works!

//to safely serialize
$safe_string_to_store = base64_encode(serialize($multidimensional_array));

//to unserialize...
$array_restored_from_db = unserialize(base64_decode($encoded_serialized_string));

Read more about this solution HERE