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.