function plugin_qrcode_action()
{
global $vars;
if (empty($vars['d'])) {
// 透過PNG
$buffer = base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVQI12NgYAAAAAMAASDVlMcAAAAASUVORK5CYII=');
} else {
$qr = new PHPQRCode\QRcode();
// 宣言
$qr->version = empty($vars['v']) ? 0 : $vars['v'];
// バージョン
$qr->mask = empty($vars['m']) ? PHPQRCode\Constants::QR_DEFAULT_MASK : $vars['m'];
// 分割数
$qr->count = empty($vars['n']) ? 1 : $vars['n'];
//
$qr->hint = empty($vars['h']) ? PHPQRCode\Constants::QR_MODE_AN : $vars['h'];
// 文字コード
// $parity = (empty($vars['p'])) ? 0 : $vars['p']; // パリティ（使用しない）
$buffer = $qr->png(rawurldecode($vars['d']), false, empty($vars['e']) ? 'M' : $vars['e'], empty($vars['s']) ? 1 : $vars['s'], 2);
}
// 出力
Header::writeResponse(Header::getHeaders('image/png'), 200, $buffer);
exit;
}
/**
* Generates a QR code for the certificate. The QR code embeds the text given
* @param string $text Text to be added in the QR code
* @param string $path file path of the image
* */
public function generate_qr($text, $path)
{
//Make sure HTML certificate is generated
if (!empty($text) && !empty($path)) {
//L low, M - Medium, L large error correction
return PHPQRCode\QRcode::png($text, $path, 'M', 2, 2);
}
return false;
}
