codeigniter ci问题总结

codeigniter Message: mkdir(): Invalid path  Filename: drivers/Session_files_driver.php

原因不明,解决办法:

$config['sess_save_path'] = NULL;

改为

$config['sess_save_path'] = FCPATH.'public/sess_save_path';
//在根目录下新建public/sess_save_path,并给写文件权限

自动加载session报错:

解决办法:

$this->load->library('encryption');
$key = bin2hex($this->encryption->create_key(16));
echo $key;

生成key,$config['encryption_key'] = 'aab3162f9de3bdd00f7dd52662fed21d';