控制器：功能income_reports（）
public function income_reports(){
if(isset($_POST["search"])) {
$from=$this->input->post('from_date');
$to=$this->input->post('to_date');
$this->load->model("Home_model");
$data['view_report']=$this->Home_model->income_report($from,$to);
$data['cat_result']=$this->Home_model->add_cat();
$pdfFilePath = "output_pdf_name.pdf";
$this->load->library('m_pdf');
$html = $this->load->view('income_reports',$data,true);
$this->m_pdf->pdf->WriteHTML($html);
$this->m_pdf->pdf->Output($pdfFilePath, "D");
}
}
视图：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title> Income |Report</title>
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,300italic,400italic,600italic">
</head>
<div class="wrapper" >
<!-- Main content -->
<section class="invoice">
<!-- Table row -->
<div class="row">
<div class="col-xs-12 table-responsive">
<table class="table-border" cellspacing="50">
<thead>
<tr>
<th>#</th>
<th>Date</th>
<th>Category</th>
<th>Description</th>
<th>Income Amount</th>
</tr>
</thead>
<tbody>
<?php
$total_sum=0;
if($view_report->num_rows() > 0)
{
$i=1;
foreach($view_report->result() as $row)
{
?>
<tr>
<td><?php echo $i++;?></td>
<td><?php echo $row->date;?></td>
<td><?php echo $row->cat_name;?></td>
<td><?php echo $row->description;?></td>
<td><?php echo $row->inc_amount;?></td>
</tr>
<?php
$total_sum+=$row->inc_amount;
}
}
else
{
?>
<tr><td>Not Found</td></tr>
<?php
}
?>
</tbody>
</table>
<div>
<h4 style="color: green; padding-left: 500px;">Total : ₹<?php echo $total_sum ?> !</h4>
</div>
</div>
<!-- /.col -->
</div>
<!-- /.row -->
</section>
<!-- /.content -->
</div>
<!-- ./wrapper -->
</body>
</html>
在这段代码中我创建了一个视图文件有名称income_reports.php，现在我想这些问题导出为PDF格式，这个我使用mpdf CodeIgniter在那里我有在第三方负载M_pdf.php图书馆和pdf，但它不工作就说明我的错误。
所以，我怎样才能解决这个问题？请帮我。
错误：1）
一个PHP错误遇到严重性：通知消息：未定义的属性：m_pdf :: $ PDF文件名：控制器/ Home.php行号：156
2)
未捕获的异常时遇到类型：错误消息：调用一个成员函数的WriteHTML（）上的空文件名：C：\ XAMPP \ htdocs中\ income_expence_manage \应用\控制器\ Home.php行号：156
谢谢
尝试这个 ：
一，应用/库/ M_pdf.php：
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
class M_pdf {
function m_pdf()
{
$CI = & get_instance();
log_message('Debug', 'mPDF class is loaded.');
}
function load($param=NULL)
{
include_once APPPATH.'/third_party/mpdf/mpdf.php';
if ($params == NULL)
{
$param = '"en-GB-x","A4","","",10,10,10,10,6,3';
}
//return new mPDF($param);
return new mPDF();
}
}
?>
2.复印MPDF文件夹应用程序/ THIRD_PARTY /
3.Controller：
$html = $this->load->view('filename',$data,true);
$pdfFilePath = 'path/filename';
$pdf = $this->m_pdf->load();
$pdf->AddPage('','','','','',5,5,5,5,10,10); //set margin
$pdf->WriteHTML($html,2);
ob_clean();
$pdf->Output($pdfFilePath, "F");