在CodeIgniter 3中重定向后，Flashdata未被清除

Question

我使用的是CodeIgniter 3，即使在重定向后，我在该项目上设置的flashdata也不会被清除。刷新页面或再次访问页面后，它仍在显示。如何解决此问题？

控制器中的一种功能。

public function updateDonor($donor)
{
$birthDate = $this->input->post('donordob');
$currentDate = date("Y-m-d");
$age = date_diff(date_create($birthDate), date_create($currentDate));
$this->form_validation->set_rules('donorname', 'Donor Name', 'required');
$this->form_validation->set_rules('donornic', 'Donor NIC', 'required');
$this->form_validation->set_rules('donordob', 'Donor DOB', 'required');
$this->form_validation->set_rules('donorweight', 'Donor Weight', 'required');
$this->form_validation->set_rules('donormobile', 'Donor Mobile', 'required');
if ($this->form_validation->run()) {
$data = [
'DonorName' => $this->input->post('donorname'),
'DonorNIC' => $this->input->post('donornic'),
'DonorDOB' => $this->input->post('donordob'),
'DonorAge' => $age->format("%y"),
'DonorWeight' => $this->input->post('donorweight'),
'DonorMobile' => $this->input->post('donormobile'),
];
$this->load->model('Donor_Model');
$data['donor'] = $this->Donor_Model->updateDonor($data, $donor);
$this->session->set_flashdata('donorupdated', 'Donor detailed updated successfully!');
redirect(base_url('index.php/staff/viewdonors'));
} else {
$this->editDonors($donor);
}

}

视图中的代码

<?php if ($this->session->flashdata('donorupdated')) { ?>
<script>
alertify.set('notifier', 'position', 'top-right');
alertify.success("<?php echo $this->session->flashdata('donorupdated'); ?>")
</script>
<?php } ?>

Answer 1

只需在<script>标签后添加unset($_SESSION['donorupdated']);，如下方

<?php if ($this->session->flashdata('donorupdated')) { ?>
<script>
alertify.set('notifier', 'position', 'top-right');
alertify.success("<?php echo $this->session->flashdata('donorupdated'); ?>")
</script>
<?php unset($_SESSION['donorupdated']); ?>
<?php } ?>

Answer 2

如果不执行此操作，请执行以下步骤。

CREATE TABLE IF NOT EXISTS `ci_sessions` (
`id` varchar(128) NOT NULL,
`ip_address` varchar(45) NOT NULL,
`timestamp` int(10) unsigned NOT NULL DEFAULT 0,
`data` blob NOT NULL,
KEY `ci_sessions_timestamp` (`timestamp`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

然后在autoload.php内部添加$autoload['libraries'] = array('session');

为了您的同类参考，请查看会话库

然后进入CCD_ 5。

$config['sess_driver'] = 'database';
$config['sess_cookie_name'] = 'ci_session';
$config['sess_expiration'] = 7200
$config['sess_save_path'] = 'ci_sessions';
$config['sess_match_ip'] = TRUE;
$config['sess_time_to_update'] = 300;
$config['sess_regenerate_destroy'] = TRUE;

视图中的代码

<?php if($this->session->flashdata('donorupdated')) { ?>
echo $this->session->flashdata('donorupdated');
<?php } ?>