Judy (class)

The Judy class

Introduction

(PECL judy >= 0.1.1)

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 :

• Judy::BITSET
• Judy::INT_TO_INT
• Judy::INT_TO_MIXED
• Judy::STRING_TO_INT
• Judy::STRING_TO_MIXED

<?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

public int byCount ( int $nth_index )

public __construct ( int $judy_type )

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

public void __destruct ( void )

public mixed first ([ mixed $index ] )

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

public int free ( void )

public int getType ( void )

public void last ([ string $index ] )

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

public int memoryUsage ( void )

public mixed next ( mixed $index )

public int nextEmpty ( int $index )

public bool offsetExists ( mixed $offset )

public mixed offsetGet ( mixed $offset )

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

public bool offsetUnset ( mixed $offset )

public mixed prev ( mixed $index )

public int prevEmpty ( mixed $index )

public void size ( void )

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.

Table of Contents

• 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