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);
?>

Class synopsis

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

}

PHP: Judy - Manual Home of Manuel PHP Contents Haut

Predefined Constants

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.

PHP: Judy - Manual Home of Manuel PHP Contents Haut

Judy::byCount — Locate the Nth index present in the Judy array
Judy::__construct — Construct a new Judy object
Judy::count — Count the number of elements in the Judy array
Judy::__destruct — Destruct a Judy object
Judy::first — Search for the first index in the Judy array
Judy::firstEmpty — Search for the first absent index in the Judy array
Judy::free — Free the entire Judy array
Judy::getType — Return the type of the current Judy array
Judy::last — Search for the last index in the Judy array
Judy::lastEmpty — Search for the last absent index in the Judy array
Judy::memoryUsage — Return the memory used by the Judy array
Judy::next — Search for the next index in the Judy array
Judy::nextEmpty — Search for the next absent index in the Judy array
Judy::offsetExists — Whether a offset exists
Judy::offsetGet — Offset to retrieve
Judy::offsetSet — Offset to set
Judy::offsetUnset — Offset to unset
Judy::prev — Search for the previous index in the Judy array
Judy::prevEmpty — Search for the previous absent index in the Judy array
Judy::size — Return the size of the current Judy array

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-class.judy.html

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References

Manuel PHP : http://php.net

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Contents Haut

The Judy class

Introduction

Class synopsis

Predefined Constants

Table of Contents

References