将Mpdf与Codeigniter结合使用可生成空白输出 [英] Using mpdf with codeigniter generate blank output

问题描述

我一直在发送

I have been flowing this post to generate a pdf but the output is blank and there is no error displayed , i have put :

public function generate_pdf()
{
    $this->load->library('mpdf');
    $mpdf=new mPDF('utf-8','A4');
    $mpdf->WriteHTML('<p>HTML content goes here...</p>');
    $mpdf->Output();
}

当我放:

public function generate_pdf()
{
    $this->load->library('mpdf');
    $mpdf=new mPDF('utf-8','A4');
    $mpdf->debug = true;
    $mpdf->WriteHTML('<p>HTML content goes here...</p>');
    $mpdf->Output();
}

引用此答案，我收到此错误:

referred to this answer , i get this error :

Output has already been sent from the script - PDF file generation aborted.

推荐答案

它正在使用 ob_end_clean()进行工作，该擦除将清除输出缓冲区并关闭输出缓冲

it is working using ob_end_clean() that erase the output buffer and turn off output buffering

public function generate_pdf()
{
   ob_end_clean();
   $this->load->library('mpdf');
   $mpdf=new mPDF('utf-8','A4');
   $mpdf->debug = true;
   $mpdf->WriteHTML('<p>HTML content goes here...</p>');
   $mpdf->Output();
}

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