Here is a list of all documented variables with links to the documentation:

• ENC_ASCII : datamatrix.php
• ENC_ASCII_EXT : datamatrix.php
• ENC_ASCII_NUM : datamatrix.php
• ENC_BASE256 : datamatrix.php
• ENC_C40 : datamatrix.php
• ENC_EDF : datamatrix.php
• ENC_TXT : datamatrix.php
• ENC_X12 : datamatrix.php