QRStringJSON.md

QRStringJSON

Class QRStringJSON: JSON output.

Example

$options = new QROptions;

$options->outputType = QROutputInterface::STRING_JSON;
$options->jsonFlags  = JSON_THROW_ON_ERROR|JSON_UNESCAPED_SLASHES;

header('Content-type: application/json');

$data   = 'https://www.youtube.com/watch?v=dQw4w9WgXcQ';

echo (new QRCode($options))->render($data); // -> JSON string

The associated JSON schema can be found over at GitHub: qrcode.schema.json

Previous functionality

The previous versions of php-qrcode (v5 and earlier) just dumped an array representation of the internal matrix, which is equivalent to the following:

$matrix = (new QRCode($options))->getQRMatrix(); // -> QRMatrix instance

// retrieve the internal matrix as an array of booleans
$json   = json_encode($matrix->getMatrix(true), $jsonFlags);

Additional methods

method	return	description
(protected) row(int $y, array $row)	array|null	creates a DOM element for a matrix row
(protected) module(int $x, int $y, int $M_TYPE)	array|null	creates a DOM element for a single module

Options that affect this class

property	type
$jsonFlags	int