我觉得我错过了一小步，显然其他相关问题的每个人都理解。
我创建了一个简单的CI 2视图、控制器和模型，如下所示：
我已将dompdf安装到 helpers 文件夹中，如下所示：
applications/helpers/dompdf
applications/helpers/dompdf/dompdf_help.php
我想要发生的是当用户单击视图页面上的提交按钮时，将表单数据发送到数据库，然后获取该填写表单的 pdf。
在得到未定义的 var 错误或什么都没有之间，除了数据进入 db，我看不到我缺少什么。
有人可以指导我吗？我没有得到什么？
看法
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test pdf</title>
</head>
<body>
<?php // Change the css classes to suit your needs
$attributes = array('class' => '', 'id' => '');
echo form_open('quicksubmit', $attributes); ?>
<p>
<label for="title">Title <span class="required">*</span></label>
<?php echo form_error('title'); ?>
<?php // Change the values in this array to populate your dropdown as required ?>
<?php $options = array(
'' => 'Please Select',
'Mrs' => 'Mrs',
'Miss' => 'Miss',
'Ms' => 'Ms',
'Mr' => 'Mr',
); ?>
<br /><?php echo form_dropdown('title', $options, set_value('title'))?>
</p>
<p>
<label for="first_name">First Name</label>
<?php echo form_error('first_name'); ?>
<br /><input id="first_name" type="text" name="first_name" maxlength="100" value="<?php echo set_value('first_name'); ?>" />
</p>
<p>
<label for="last_name">Last Name <span class="required">*</span></label>
<?php echo form_error('last_name'); ?>
<br /><input id="last_name" type="text" name="last_name" maxlength="100" value="<?php echo set_value('last_name'); ?>" />
</p>
<p>
<label for="branch">Branch</label>
<?php echo form_error('branch'); ?>
<?php // Change the values in this array to populate your dropdown as required ?>
<?php $options = array(
'' => 'Please Select',
'Branch 1' => 'Branch One',
'Branch 2' => 'Branch Two',
); ?>
<br /><?php echo form_dropdown('branch', $options, set_value('branch'))?>
</p>
<p>
<label for="zip">Zip</label>
<?php echo form_error('zip'); ?>
<br /><input id="zip" type="text" name="zip" maxlength="7" value="<?php echo set_value('zip'); ?>" />
</p>
<p>
<?php echo form_submit( 'submit', 'Submit'); ?>
</p>
<?php echo form_close(); ?>
</body>
</html>
控制器
<?php
class Quicksubmit extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('form_validation');
$this->load->database();
$this->load->helper('form');
$this->load->helper('url');
$this->load->model('quicksubmit_model');
}
function index()
{
$this->form_validation->set_rules('title', 'Title', 'required|trim|xss_clean|max_length[50]');
$this->form_validation->set_rules('first_name', 'First Name', 'trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('last_name', 'Last Name', 'required|trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('branch', 'Branch', 'trim|xss_clean|max_length[100]');
$this->form_validation->set_rules('zip', 'Zip', 'trim|xss_clean|is_numeric|max_length[7]');
$this->form_validation->set_error_delimiters('<br /><span class="error">', '</span>');
if ($this->form_validation->run() == FALSE) // validation hasn't been passed
{
$this->load->view('quicksubmit_view');
}
else // passed validation proceed to post success logic
{
// build array for the model
$this->pdf($output);
$form_data = array(
'title' => set_value('title'),
'first_name' => set_value('first_name'),
'last_name' => set_value('last_name'),
'branch' => set_value('branch'),
'zip' => set_value('zip')
);
// run insert model to write data to db
if ($this->quicksubmit_model->SaveForm($form_data) == TRUE) // the information has therefore been successfully saved in the db
{
redirect('quicksubmit/success'); // or whatever logic needs to occur
}
else
{
echo 'An error occurred saving your information. Please try again later';
// Or whatever error handling is necessary
}
}
}
function success()
{
redirect(base_url(),'refresh');
/*echo 'this form has been successfully submitted with all validation being passed. All messages or logic here. Please note
sessions have not been used and would need to be added in to suit your app';*/
}
function pdf()
{
$this->load->helper(array('dompdf', 'file'));
// page info here, db calls, etc.
$html = $this->load->view('quicksubmit_view', $data, true);
pdf_create($html, 'filename');
/*or
$data = pdf_create($html, '', false);
write_file('name', $data);*/
//if you want to write it to disk and/or send it as an attachment
}
}
?>
模型
<?php
class Quicksubmit_model extends CI_Model {
function __construct()
{
parent::__construct();
}
// --------------------------------------------------------------------
/**
* function SaveForm()
*
* insert form data
* @param $form_data - array
* @return Bool - TRUE or FALSE
*/
function SaveForm($form_data)
{
$this->db->insert('quicksubmit', $form_data);
if ($this->db->affected_rows() == '1')
{
return TRUE;
}
return FALSE;
}
}
?>
dompdf_help.php 文件
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
function pdf_create($html, $filename='', $stream=TRUE)
{
require_once("dompdf/dompdf_config.inc.php");
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
if ($stream) {
$dompdf->stream($filename.".pdf");
} else {
return $dompdf->output();
}
}
?>