Question

您好我正在使用DOMPDF生成PDF文件，我想知道如何获取页码。

我在DOMPDF的FAQ页面中提到了以下内容。并没有成功。注意：我也打开了内联PHP以及它在FAQ

中提到的内容

以下是我的代码

 <?php
require_once("dompdf/dompdf_config.inc.php");


ob_start();
//be sure this file exists, and works outside of web context etc.)


$dompdf = new DOMPDF();


$html="     <script type='text/php'>";
        if ( isset($pdf) ) { 
            $font = Font_Metrics::get_font("yourfont", "normal");
            $size = 9;
            $y = $pdf->get_height() - 24;
            $x = $pdf->get_width() - 15 - Font_Metrics::get_text_width("1/1", $font, $size);
            $pdf->page_text($x, $y, "{PAGE_NUM}/{PAGE_COUNT}", $font, $size);
        } 
$html.="        </script>";

$html .="
        aaaaa<br/>aaaaaa<br/>aaaaaa<br/>aaaaa<br/>aaaaaa<br/>aaaaaa<br/>aaaa<br/>aaaaa<br/>aaaaaa<br/>aaaaa<br/>
        aaaaa<br/>aaaaaaa<br/>aaaaaa<br/>
aaaaa<br/>aaaaaa<br/>
        aaaaaaa<br/>aaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaa<br/>aaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaaa<br/>aaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaaa<br/>aaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaaa<br/>aaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaaaa<br/>aaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaa<br/>
        </body></html>"; 


$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");


 ?>

有人能指出我这个问题吗？我哪里弄错了

Answer 1

您正在将内联脚本作为PHP页面的一部分运行，而不是将其传递给dompdf。您的代码可以编写如下（截断到相关部分）：

...
$html="
<html>
  <body>
    <script type='text/php'>
      if ( isset($pdf) ) { 
        $font = Font_Metrics::get_font('helvetica', 'normal');
        $size = 9;
        $y = $pdf->get_height() - 24;
        $x = $pdf->get_width() - 15 - Font_Metrics::get_text_width('1/1', $font, $size);
        $pdf->page_text($x, $y, '{PAGE_NUM}/{PAGE_COUNT}', $font, $size);
      } 
    </script>
";
...

请注意，内联脚本当前必须出现在BODY元素中。否则，在文档处理过程中将忽略它。

There are other ways to achieve what you want as well

Answer 2

如果您使用'1/1'来获得$ x，那么当您的页数超过10页时，这将不起作用。

一个可能的解决方案意味着编辑“cpdf_adapter.cls.php”，所以_add_page_text（）函数在str_replace（）之后使用以下内容...关于第790行：

if ($x < 0) $x = (($this->_width + $x) - $this->get_text_width($text, $font, $size));
if ($y < 0) $y = (($this->_height + $y) - $this->get_font_height($font, $size));

这个想法是你可以传递负x / y坐标，它们将从右边/底边工作。

然后在发送给DOMPDF的HTML中，我使用了：

<script type="text/php">
   $pdf->page_text(-30, -32, "{PAGE_NUM} of {PAGE_COUNT}", Font_Metrics::get_font("serif"), 10, array(0,0,0));
</script>

或者如果要在px中指定x / y：

<script type="text/php">
   $pdf->page_text(((-30 * 72) / DOMPDF_DPI), ((-32 * 72) / DOMPDF_DPI), "{PAGE_NUM} of {PAGE_COUNT}", Font_Metrics::get_font("serif"), 10, array(0,0,0));
</script>

Answer 3

对我有用的代码。您可以根据 PDF 的大小自定义应位于的位置：

$pdf->load_html($html);
$pdf->render();
$dompdf = $pdf->getDomPDF();
$color = array(0, 0, 0);
$font = null;
$size = 10;

$canvas = $dompdf->get_canvas();
$canvas->page_text(0, 0, "{PAGE_NUM} of {PAGE_COUNT}", $font, $size, $color);

请记住，颜色数组不包含 RGB 值。您可以从行 RYB here 中获取适当的值作为范围 (0,1) 中的值，即 array(0.46,0.46,0.46)。

dompdf页码

3 个答案: