Questions about generating two-dimensional code in php

Questions about generating two-dimensional code using php: the printed content contains the 2DDataMatrix tag. I am Baidu: I cannot find the PHP-generated DataMatrix class. 1. how to generate the DataMatrix code? 2. After I use QR2Dshengch, can the other party read it? Thank you ., 1. Questions about generating two-dimensional code through http: php
Customer requirements: the printed content contains 2D Data Matrix labels.

I tried Baidu:
The PHP Data Matrix class cannot be found.
1. how to generate a Data Matrix code?
2. Can the recipient read the QR 2Dshengch?

Thank you.

------ Solution --------------------
1, http://phpqrcode.sourceforge.net/index.php#demo
2. almost every smartphone supports reading QR codes.
------ Solution --------------------
2. almost every smartphone supports reading QR codes.

Change

2. the QR code can be read after almost every smartphone has an application installed.

Discussion

1, http://phpqrcode.sourceforge.net/index.php#demo
2. almost every smartphone supports reading QR codes.

------ Solution --------------------
Discussion

2. almost every smartphone supports reading QR codes.

Change

2. the QR code can be read after almost every smartphone has an application installed.

Reference:

1, http://phpqrcode.sourceforge.net/index.php#demo
2. almost every smartphone supports reading QR codes.