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<?php |
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/** |
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* Class AlphaNum |
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* |
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* @filesource AlphaNum.php |
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* @created 25.11.2015 |
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* @package chillerlan\QRCode\Data |
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* @author Smiley <[email protected]> |
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* @copyright 2015 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\QRCode\Data; |
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use chillerlan\QRCode\QRCode; |
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/** |
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* Alphanumeric mode: 0 to 9, A to Z, space, $ % * + - . / : |
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*/ |
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class AlphaNum extends QRDataAbstract{ |
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const CHAR_MAP = [ |
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'0', '1', '2', '3', '4', '5', '6', '7', |
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'8', '9', 'A', 'B', 'C', 'D', 'E', 'F', |
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'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', |
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'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', |
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'W', 'X', 'Y', 'Z', ' ', '$', '%', '*', |
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'+', '-', '.', '/', ':', |
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]; |
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/** |
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* @var int |
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*/ |
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protected $datamode = QRCode::DATA_ALPHANUM; |
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/** |
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* @var array |
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*/ |
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protected $lengthBits = [9, 11, 13]; |
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/** |
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* @inheritdoc |
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*/ |
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protected function write(string $data){ |
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for($i = 0; $i + 1 < $this->strlen; $i += 2){ |
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$this->bitBuffer->put($this->getCharCode($data[$i]) * 45 + $this->getCharCode($data[$i + 1]), 11); |
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} |
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if($i < $this->strlen){ |
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$this->bitBuffer->put($this->getCharCode($data[$i]), 6); |
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} |
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} |
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/** |
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* @param string $chr |
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* |
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* @return int |
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* @throws \chillerlan\QRCode\Data\QRCodeDataException |
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*/ |
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protected function getCharCode(string $chr):int { |
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$i = array_search($chr, self::CHAR_MAP); |
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if($i !== false){ |
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return $i; |
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} |
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throw new QRCodeDataException('illegal char: "'.$chr.'" ['.ord($chr).']'); |
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} |
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} |
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chillerlan /
php-qrcode
