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The Judy class
(PECL judy >= 0.1.1)
简介
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
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 );
?> 类摘要
Judy implements
ArrayAccess ,
Iterator
{
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
;
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
)
}预定义常量
-
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