Documentation

BitBuffer
in package

FinalYes

Holds the raw binary data

Table of Contents

Properties

$bitsRead  : int
Read count (bits)
$buffer  : array<string|int, int>
The buffer content
$bytesRead  : int
Read count (bytes)
$length  : int
Length of the content (bits)

Methods

__construct()  : mixed
BitBuffer constructor.
available()  : int
Returns the number of bits that can be read successfully
clear()  : self
Clears the buffer and resets the stats
getBuffer()  : array<string|int, int>
returns the buffer content
getLength()  : int
returns the current buffer length
put()  : self
appends a sequence of bits
putBit()  : self
appends a single bit
read()  : int
rewind()  : self
Resets the read-counters

Properties

$bitsRead

Read count (bits)

private int $bitsRead = 0

$buffer

The buffer content

private array<string|int, int> $buffer

$bytesRead

Read count (bytes)

private int $bytesRead = 0

$length

Length of the content (bits)

private int $length

Methods

__construct()

BitBuffer constructor.

public __construct([array<string|int, int> $bytes = [] ]) : mixed
Parameters
$bytes : array<string|int, int> = []

available()

Returns the number of bits that can be read successfully

public available() : int
Return values
int

clear()

Clears the buffer and resets the stats

public clear() : self
Return values
self

getBuffer()

returns the buffer content

public getBuffer() : array<string|int, int>

to debug: array_map(fn($v) => sprintf('%08b', $v), $bitBuffer->getBuffer())

Return values
array<string|int, int>

getLength()

returns the current buffer length

public getLength() : int
Return values
int

put()

appends a sequence of bits

public put(int $bits, int $length) : self
Parameters
$bits : int
$length : int
Return values
self

putBit()

appends a single bit

public putBit(bool $bit) : self
Parameters
$bit : bool
Return values
self

read()

public read(int $numBits) : int
Parameters
$numBits : int

number of bits to read

Tags
author

Sean Owen, ZXing

throws
QRCodeException

if numBits isn't in [1,32] or more than is available

Return values
int

representing the bits read. The bits will appear as the least-significant bits of the int

rewind()

Resets the read-counters

public rewind() : self
Return values
self

        
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