core_qrcode Class Reference

Class for generating QR codes. More...

Inheritance diagram for core_qrcode:

Public Member Functions
	__construct ($data)
	Overrided constructor to force QR codes.
	getBarcodeArray ()
	Return an array representations of barcode.
	getBarcodeHTML ($w=10, $h=10, $color='black')
	Return an HTML representation of barcode.
	getBarcodePNG ($w=3, $h=3, $color=array(0, 0, 0))
	Send a PNG image representation of barcode (requires GD or Imagick library).
	getBarcodePngData ($w=3, $h=3, $color=array(0, 0, 0))
	Return a PNG image representation of barcode (requires GD or Imagick library).
	getBarcodeSVG ($w=3, $h=3, $color='black')
	Send barcode as SVG image object to the standard output.
	getBarcodeSVGcode ($w=3, $h=3, $color='black')
	Return a SVG string representation of barcode.
	setBarcode ($code, $type)
	Set the barcode.

Protected Attributes
	$barcode_array = array()
	Array representation of barcode.

Detailed Description

Class for generating QR codes.

Wrapper class that extends TCPDF.

Copyright

2020 Moodle Pty Ltd.

Constructor & Destructor Documentation

__construct()

core_qrcode::__construct

(

$data

)

Overrided constructor to force QR codes.

Parameters

string

$data

the data to generate the code

Member Function Documentation

getBarcodeArray()

TCPDF2DBarcode::getBarcodeArray ( )

inherited

Return an array representations of barcode.

Return values

array

getBarcodeHTML()

TCPDF2DBarcode::getBarcodeHTML ( $w = 10, $h = 10, $color = 'black' )

inherited

Return an HTML representation of barcode.

Parameters

int	$w	Width of a single rectangle element in pixels.
int	$h	Height of a single rectangle element in pixels.
string	$color	Foreground color for bar elements (background is transparent).

Return values

string

HTML code.

getBarcodePNG()

TCPDF2DBarcode::getBarcodePNG ( $w = 3, $h = 3, $color = array(0,0,0) )

inherited

Send a PNG image representation of barcode (requires GD or Imagick library).

Parameters

int	$w	Width of a single rectangle element in pixels.
int	$h	Height of a single rectangle element in pixels.
array	$color	RGB (0-255) foreground color for bar elements (background is transparent).

getBarcodePngData()

TCPDF2DBarcode::getBarcodePngData ( $w = 3, $h = 3, $color = array(0,0,0) )

inherited

Return a PNG image representation of barcode (requires GD or Imagick library).

Parameters

int	$w	Width of a single rectangle element in pixels.
int	$h	Height of a single rectangle element in pixels.
array	$color	RGB (0-255) foreground color for bar elements (background is transparent).

Return values

string|Imagick|false

image or false in case of error.

getBarcodeSVG()

TCPDF2DBarcode::getBarcodeSVG ( $w = 3, $h = 3, $color = 'black' )

inherited

Send barcode as SVG image object to the standard output.

Parameters

int	$w	Width of a single rectangle element in user units.
int	$h	Height of a single rectangle element in user units.
string	$color	Foreground color (in SVG format) for bar elements (background is transparent).

getBarcodeSVGcode()

TCPDF2DBarcode::getBarcodeSVGcode ( $w = 3, $h = 3, $color = 'black' )

inherited

Return a SVG string representation of barcode.

Parameters

int	$w	Width of a single rectangle element in user units.
int	$h	Height of a single rectangle element in user units.
string	$color	Foreground color (in SVG format) for bar elements (background is transparent).

Return values

string

SVG code.

setBarcode()

TCPDF2DBarcode::setBarcode ( $code, $type )

inherited

Set the barcode.

Parameters

string	$code	code to print
string	$type	type of barcode: DATAMATRIX : Datamatrix (ISO/IEC 16022) PDF417 : PDF417 (ISO/IEC 15438:2006) PDF417,a,e,t,s,f,o0,o1,o2,o3,o4,o5,o6 : PDF417 with parameters: a = aspect ratio (width/height); e = error correction level (0-8); t = total number of macro segments; s = macro segment index (0-99998); f = file ID; o0 = File Name (text); o1 = Segment Count (numeric); o2 = Time Stamp (numeric); o3 = Sender (text); o4 = Addressee (text); o5 = File Size (numeric); o6 = Checksum (numeric). NOTES: Parameters t, s and f are required for a Macro Control Block, all other parameters are optional. To use a comma character ',' on text options, replace it with the character 255: "::xff". QRCODE : QRcode Low error correction QRCODE,L : QRcode Low error correction QRCODE,M : QRcode Medium error correction QRCODE,Q : QRcode Better error correction QRCODE,H : QR-CODE Best error correction RAW: raw mode - comma-separad list of array rows RAW2: raw mode - array rows are surrounded by square parenthesis. TEST : Test matrix

Return values

void

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The documentation for this class was generated from the following file:

• lib/classes/qrcode.php