How to solve Chinese garbled characters in php pdf

php PDF Chinese garbled solution: 1. Add "require_once(dirname(FILE).'/lang/chi.php');" in "tcpdf/config/tcpdf_config.php"; 2. Modify the defined values ​​of two constants.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

php pdf How to solve Chinese garbled characters?

php generates pdf garbled characters?php tcpdf generates pdf: Chinese garbled characters

TCPDF is a good library for generating PDF. Unfortunately, the official support for East Asian fonts including Chinese is not very good. Kind of.

Scenario: A certain project needs to generate invoices in pdf format based on database information. Consider using the stable tcpdf. Although there are many other options, this should be the first choice. I won’t mention the reasons.

But I discovered something: when there is Chinese information on the invoice, it is garbled and displayed as a question mark.

After searching on Google, I learned a little bit.

TCPDF does not adopt common self-explanatory standards such as ttf, but uses a special font format. There are articles copied everywhere on Google saying that Droid Sans that supports Chinese should be used, and they also say tcpdf with certainty There is a utils directory under the fonts folder, and there is ttf2num.exe under it. Maybe, this thing is in the old version of tcpdf, but it is not in the 6.0.X version I downloaded

However, after going through many difficulties and dangers, I finally converted Droid Sans into a font format acceptable to TCPDF (download the converted font: http://pan.baidu.com/s/1bnq21Ld).

The main file of tcpdf uses ASCII encoding. Don’t change it to UTF-8 format on your own.

The data passed to tcpdf should not be in utf-8 format, otherwise, Chinese errors will occur.

Extract the downloaded font compressed package above and get three files:

droidsansfallback.php, droidsansfallback.z and droidsansfallback.ctg.z. Copy these three files to tcpdf /fonts directory.

#Personal test, this line is not required

In addition to the above points, you also need to add in tcpdf/config/tcpdf_config.php:

require_once(dirname(FILE).’/lang/chi.php’);

Modify this file The definition values ​​of the two constants are:

define (‘PDF_FONT_NAME_MAIN’, ‘droidsansfallback’);
define (‘PDF_FONT_NAME_DATA’, ‘droidsansfallback’);

OK, it can already support the output of pdf documents containing Chinese!

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