codeigniter会话在使用头函数后到期

Question

My sessions expires after using this code on my controller :

header("Location: $url?$params");

This is the main function which will make me to go to a site. After doing some process,it will redirect it back to my website.But there my session expires.what is the main problem behind this?

Here is my session settings on my config.php

$config['sess_cookie_name']     = 'ci_session';
$config['sess_expiration']      = 7200;
$config['sess_expire_on_close'] = FALSE;
$config['sess_encrypt_cookie']  = FALSE;
$config['sess_use_database']    = FALSE;
$config['sess_table_name']      = 'ci_sessions';
$config['sess_match_ip']        = FALSE;
$config['sess_match_useragent'] = TRUE;
$config['sess_time_to_update']  = 300;

Answer 1

You need to change this config:

$config['sess_match_useragent'] = TRUE;

To:

$config['sess_match_useragent'] = FALSE;

Try this and check hopefully it will solve your problem.