我在其中创建的覆盖工具文件夹并且我把我们在这里找到的dompdf-master https://github.com/dompdf/dompdf 。。 p>

相反，我复制了PDFGenerator.php内的override / classes / pdf中，在classes / pdf中。

在PDFGenerator中.php添加：

  require_once（'/../ override / tools / dompdf-master / dompdf / Dompdf.php'） ; 
 require_once（’/../ override / tools / dompdf-master / autoload.inc.php’）; 
 include（’/../ override / tools / dompdf-master / dompdf / dompdf_config.inc.php’）； 
使用Dompdf\Dompdf； 
使用Dompdf\Options； 
 

课程变为：

 类PDFGenerator扩展DOMPDF 
 

取消render（）函数并将其替换为：

 公共函数render（$ filename，$ display = true）
 {
 if（empty（ $ filename））{
抛出新的PrestaShopException（'Missing filename。'）; 
} 

 $ html = $ this-> header。$ this-> content。$ this->页脚; 
 // die（$ html）; 

 $ options = new Options（）; 
 $ options-> set（'A4'，'potrait'）; 
 $ options-> set（'enable_css_float'，true）; 
 $ options-> set（'isHtml5ParserEnabled'，true）; 

 $ dompdf =新的DOMPDF（$ options）; 
 $ dompdf-> load_html（$ html）; 

 $ dompdf-> render（）; 

 $ dompdf-> stream（$ filename）; 
} 
 

然后我删除了cache / class_index.php

I use PrestaShop 1.6.1.4 and I want to change the library tcpdf with dompdf.

I use this form for creating invoices.

What are the best practices for a library exchange?

I created inside override the tools folder and I put us dompdf-master found here https://github.com/dompdf/dompdf.

Instead inside override/classes/pdf i copied PDFGenerator.php, there is in classes/pdf.

In PDFGenerator.php add:

require_once('/../override/tools/dompdf-master/dompdf/Dompdf.php');
require_once('/../override/tools/dompdf-master/autoload.inc.php');
include('/../override/tools/dompdf-master/dompdf/dompdf_config.inc.php');
use Dompdf\Dompdf;
use Dompdf\Options;

The class becomes:

class PDFGenerator extends DOMPDF

Eliminates the render() function and replace it with:

public function render($filename, $display = true)
{
    if (empty($filename)) {
        throw new PrestaShopException('Missing filename.');
    }

    $html = $this->header.$this->content.$this->footer;
    //die($html);    

    $options = new Options();
    $options->set('A4','potrait');
    $options->set('enable_css_float',true);
    $options->set('isHtml5ParserEnabled', true);

    $dompdf = new DOMPDF($options);
    $dompdf->load_html($html);

    $dompdf->render();

    $dompdf->stream($filename);
}

Then i deleted cache/class_index.php