用函数serialize()把数组序列化为字符串，用GET传递，然后接受时再反序列化unserialize() 为数组.
php5.2.0以后的版本也可以使用json_encode()和json_decode()来实现

$a =Array
(
‘discuz_uid’ =1,
‘tid’ =330,
‘timestamp’ =1173356908,
) ;

echo serialize($a);

$b = unserialize(serialize($a));

print_r($b);