Though not observed in any QR Code or reader so far, it is conceivable that iCal format could be used to encode calendar events. Readers could add events to the user's calendar in response.


use Da\QrCode\QrCode;
use Da\QrCode\Format\iCalFormat; 

$format = new iCalFormat(['summary' => 'test-summary', 'startTimestamp' => 1260232200, 'endTimestamp' => 1260318600]);

$qrCode = new QrCode($format);

header('Content-Type: ' . $qrCode->getContentType());

echo $qrCode->writeString();

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