Cdb\Util Class Reference

Common functions for readers and writers. More...

Static Public Member Functions
static	unsignedMod ( $a, $b)
	Take a modulo of a signed integer as if it were an unsigned integer.
static	unsignedShiftRight ( $a, $b)
	Shift a signed integer right as if it were unsigned.
static	hash ( $s)
	The CDB hash function.

Detailed Description

Common functions for readers and writers.

This is a port of D.J. Bernstein's CDB to PHP. It's based on the copy that appears in PHP 5.3.

Member Function Documentation

hash()

static Cdb\Util::hash (   $s )

static

The CDB hash function.

Parameters

string

$s

Returns

int

unsignedMod()

static Cdb\Util::unsignedMod (   $a,   $b  )

static

Take a modulo of a signed integer as if it were an unsigned integer.

$b must be less than 0x40000000 and greater than 0

Parameters

int	$a
int	$b

Returns

int

unsignedShiftRight()

static Cdb\Util::unsignedShiftRight (   $a,   $b  )

static

Shift a signed integer right as if it were unsigned.

Parameters

int	$a
int	$b

Returns

int

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The documentation for this class was generated from the following file:

• src/Util.php