Existing barcode formats
QR Codes and their analogue
Datamatrix , unlike the usual “stripes”, can store a significantly larger amount of information, reaching several kilobytes. They can even be read using a regular mobile phone.
With the help of special readers, for example, the
Kaywa reader, information can be transferred from a printed source to a mobile phone using its camera. So a picture with a 2D barcode can be photographed and transformed into a VCard format phonebook entry.
Wikipedia dedicated to Semacode a separate resource -
Semapedia (there, by the way, it is possible to choose a reader for your phone model).
Now, to generate a PNG image of a two-dimensional barcode, a PHP library has also appeared, which can be downloaded
here .
Look at the work of the library
here .
via PHP {Inside}