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<?php |
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/** |
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* Class Number |
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* |
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* @filesource Number.php |
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* @created 26.11.2015 |
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* @package QRCode |
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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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use function ord, sprintf, substr; |
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/** |
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* Numeric mode: decimal digits 0 through 9 |
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*/ |
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class Number extends QRDataAbstract{ |
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protected int $datamode = QRCode::DATA_NUMBER; |
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protected array $lengthBits = [10, 12, 14]; |
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/** |
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* @inheritdoc |
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*/ |
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protected function write(string $data):void{ |
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$i = 0; |
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while($i + 2 < $this->strlen){ |
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$this->bitBuffer->put($this->parseInt(substr($data, $i, 3)), 10); |
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$i += 3; |
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} |
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if($i < $this->strlen){ |
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if($this->strlen - $i === 1){ |
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$this->bitBuffer->put($this->parseInt(substr($data, $i, $i + 1)), 4); |
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} |
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elseif($this->strlen - $i === 2){ |
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$this->bitBuffer->put($this->parseInt(substr($data, $i, $i + 2)), 7); |
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} |
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} |
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} |
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/** |
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* @throws \chillerlan\QRCode\Data\QRCodeDataException |
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*/ |
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protected function parseInt(string $string):int{ |
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$num = 0; |
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$len = strlen($string); |
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for($i = 0; $i < $len; $i++){ |
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$c = ord($string[$i]); |
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if(!in_array($string[$i], $this::NUMBER_CHAR_MAP, true)){ |
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throw new QRCodeDataException(sprintf('illegal char: "%s" [%d]', $string[$i], $c)); |
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} |
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$c = $c - 48; // ord('0') |
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$num = $num * 10 + $c; |
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} |
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return $num; |
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} |
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} |
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chillerlan /
php-qrcode
