PHP QrCode Liblary 2.0

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Global Constants

Constant used globally for function arguments. More...

## QR-Code Encoding Modes
const | QR_MODE_NUL -1
| null encoding, used when no encoding was speciffied yet
const | QR_MODE_NUM 0
| Numerical encoding, only numbers (0-9)
const | QR_MODE_AN 1
| AlphaNumerical encoding, numbers (0-9) uppercase text (A-Z) and few special characters (space, $, %, *, +, -, ., /, :)
const | QR_MODE_8 2
| 8-bit encoding, raw 8 bit encoding
const | QR_MODE_KANJI 3
| Kanji encoding.
const | QR_MODE_STRUCTURE 4
| Structure, internal encoding for structure-related data.

## QR-Code Levels of Error Correction
Constants speciffy ECC level from lowest L to the highest H. Higher levels are recomended for Outdoor-presented codes, but generates bigger codes.
const | QR_ECLEVEL_L 0
| ~7% of codewords can be restored
const | QR_ECLEVEL_M 1
| ~15% of codewords can be restored
const | QR_ECLEVEL_Q 2
| ~25% of codewords can be restored
const | QR_ECLEVEL_H 3
| ~30% of codewords can be restored

## QR-Code Supported output formats
const | QR_FORMAT_TEXT 0
const | QR_FORMAT_PNG 1

## Detailed Description

Constant used globally for function arguments.

Make PHP calls a little bit more clear, in place of missing (in dynamicaly typed language) enum types.