Solve the problem of abnormal Chinese character display in PHP Dompdf

When using PHP Dompdf to generate Chinese PDF, we often encounter the problem of abnormal Chinese character display, such as garbled characters Or Chinese cannot be displayed. The root cause of this problem is that Dompdf does not support Chinese character sets by default. The following are specific steps and code examples to solve this problem:

Step 1: Download font file

You need to download a font file that supports Chinese characters first. Commonly used ones include Siyuan Songti, Microsoft Yahei, Chinese Song Dynasty, etc. Place the font files in the project's fonts folder.

Step 2: Import font files

Introduce font files in PHP, the sample code is as follows:

require_once 'dompdf/autoload.inc.php';
use DompdfDompdf;

$dompdf = new Dompdf();
$dompdf->set_option('isHtml5ParserEnabled', true);
$dompdf->set_option('isFontSubsettingEnabled', true);
$dompdf->set_option('isPhpEnabled', true);

$font = 'path/to/your/font.ttf';
$dompdf->set_option('fontDir', 'path/to/your/fonts/');
$dompdf->set_option('isHtml5ParserEnabled', true);
$dompdf->set_option('isFontSubsettingEnabled', true);

$dompdf->loadHtml('
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
你好，世界！
</body>
</html>
');
$dompdf->render();

$dompdf->stream();

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Step 3: Use custom fonts

In In the above code, you need to set $font to the path of the font file you downloaded, and insert the Chinese content to be displayed in loadHtml to ensure that the correct character encoding is set.

Conclusion

Through the above steps, you can solve the problem of abnormal Chinese character display in PHP Dompdf. By ensuring that the font files are introduced correctly, setting the correct font path, encoding, and using the correct fonts, you can successfully generate PDF files with Chinese characters.

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