AlphaNum

Alphanumeric mode: 0 to 9, A to Z, space, $ % * + - . / :

ISO/IEC 18004:2000 Section 8.3.3 ISO/IEC 18004:2000 Section 8.4.3

• Full name: \chillerlan\QRCode\Data\AlphaNum
• Parent class: \chillerlan\QRCode\Data\QRDataAbstract
• This class is marked as final and can't be subclassed
• This class is a Final class

Properties

datamode

the current data mode: Num, Alphanum, Kanji, Byte

protected int $datamode

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lengthBits

mode length bits for the version breakpoints 1-9, 10-26 and 27-40

protected array $lengthBits

ISO/IEC 18004:2000 Table 3 - Number of bits in Character Count Indicator

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Methods

write

writes the actual data string to the BitBuffer

protected write(string $data): void

Parameters:

Parameter	Type	Description
$data	string

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getCharCode

get the code for the given character

protected getCharCode(string $chr): int

Parameters:

Parameter	Type	Description
$chr	string

Throws:

on an illegal character occurence

• QRCodeDataException

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Inherited methods

__construct

QRDataInterface constructor.

public __construct(\chillerlan\Settings\SettingsContainerInterface $options, string $data = null): mixed

Parameters:

Parameter	Type	Description
$options	\chillerlan\Settings\SettingsContainerInterface
$data	string

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setData

Sets the data string (internally called by the constructor)

public setData(string $data): \chillerlan\QRCode\Data\QRDataInterface

Parameters:

Parameter	Type	Description
$data	string

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initMatrix

returns a fresh matrix object with the data written for the given $maskPattern

public initMatrix(int $maskPattern, bool $test = null): \chillerlan\QRCode\Data\QRMatrix

Parameters:

Parameter	Type	Description
$maskPattern	int
$test	bool

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getLengthBits

returns the length bits for the version breakpoints 1-9, 10-26 and 27-40

protected getLengthBits(): int

Throws:

• QRCodeDataException

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getLength

returns the byte count of the $data string

protected getLength(string $data): int

Parameters:

Parameter	Type	Description
$data	string

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getMinimumVersion

returns the minimum version number for the given string

protected getMinimumVersion(): int

Throws:

• QRCodeDataException

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write

writes the actual data string to the BitBuffer

protected write(string $data): void

• This method is abstract.

Parameters:

Parameter	Type	Description
$data	string

See Also:

• \chillerlan\QRCode\Data\QRDataAbstract::writeBitBuffer() -

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writeBitBuffer

creates a BitBuffer and writes the string data to it

protected writeBitBuffer(string $data): void

Parameters:

Parameter	Type	Description
$data	string

Throws:

on data overflow

• QRCodeException

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maskECC

ECC masking

protected maskECC(): array

ISO/IEC 18004:2000 Section 8.5 ff

See Also:

• http://www.thonky.com/qr-code-tutorial/error-correction-coding -

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poly

helper method for the polynomial operations

protected poly(int $key, int $count): array

Parameters:

Parameter	Type	Description
$key	int
$count	int

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Automatically generated on 2025-03-18