The Judy class

(PECL judy >= 0.1.1)

Introduction

The Judy class implements the ArrayAccess interface and the Iterator interface. This class, once instantiated, can be accessed like a PHP array.

A PHP Judy object (or Judy Array) can be one of the following type :

Example #1 Judy array example


<?php
    $judy = new Judy(Judy::INT_TO_MIXED);
    $judy[1] = "one";
    $judy[2] = array('a', 'b', 'c');
    $judy[3] = new Judy(Judy::BITSET);
?>

Judy implements ArrayAccess , Iterator {

/* Constants */

const integer BITSET = 1 ;

const integer INT_TO_INT = 2 ;

const integer INT_TO_MIXED = 3 ;

const integer STRING_TO_INT = 4 ;

const integer STRING_TO_MIXED = 5 ;

/* Methods */

public byCount ( int $nth_index ) : int

public __construct ( int $judy_type )

public count ([ int $index_start = 0 [, int $index_end = -1 ]] ) : int

public __destruct ( void ) : void

public first ([ mixed $index ] ) : mixed

public firstEmpty ([ mixed $index = 0 ] ) : int

public free ( void ) : int

public getType ( void ) : int

public last ([ string $index ] ) : void

public lastEmpty ([ int $index = -1 ] ) : int

public memoryUsage ( void ) : int

public next ( mixed $index ) : mixed

public nextEmpty ( int $index ) : int

public offsetExists ( mixed $offset ) : bool

public offsetGet ( mixed $offset ) : mixed

public offsetSet ( mixed $offset , mixed $value ) : bool

public offsetUnset ( mixed $offset ) : bool

public prev ( mixed $index ) : mixed

public prevEmpty ( mixed $index ) : int

public size ( void ) : void

}

Judy::BITSET: Define the Judy Array as a Bitset with keys as Integer and Values as a Boolean
Judy::INT_TO_INT: Define the Judy Array with key/values as Integer, and Integer only.
Judy::INT_TO_MIXED: Define the Judy Array with keys as Integer and Values of any type.
Judy::STRING_TO_INT: Define the Judy Array with keys as a String and Values as Integer, and Integer only.
Judy::STRING_TO_MIXED: Define the Judy Array with keys as a String and Values of any type.