Miscellaneous Classes and Interfaces

Table of Contents

Classes and interfaces which do not fit into the other SPL categories.

The ArrayObject class

Introduction

This class allows objects to work as arrays.

Class synopsis

ArrayObject
class ArrayObject implements IteratorAggregate , ArrayAccess , Serializable , Countable {
/* Constants */
const integer STD_PROP_LIST = 1 ;
const integer ARRAY_AS_PROPS = 2 ;
/* Methods */
public __construct ([ mixed $input = [] [, int $flags = 0 [, string $iterator_class = "ArrayIterator" ]]] )
public void append ( mixed $value )
public void asort ( void )
public int count ( void )
public array exchangeArray ( mixed $input )
public array getArrayCopy ( void )
public int getFlags ( void )
public ArrayIterator getIterator ( void )
public string getIteratorClass ( void )
public void ksort ( void )
public void natcasesort ( void )
public void natsort ( void )
public bool offsetExists ( mixed $index )
public mixed offsetGet ( mixed $index )
public void offsetSet ( mixed $index , mixed $newval )
public void offsetUnset ( mixed $index )
public string serialize ( void )
public void setFlags ( int $flags )
public void setIteratorClass ( string $iterator_class )
public void uasort ( callable $cmp_function )
public void uksort ( callable $cmp_function )
public void unserialize ( string $serialized )
}

Predefined Constants

ArrayObject Flags

ArrayObject::STD_PROP_LIST

Properties of the object have their normal functionality when accessed as list (var_dump, foreach, etc.).

ArrayObject::ARRAY_AS_PROPS

Entries can be accessed as properties (read and write).

Changelog

Version Description
5.3.0 Implements Serializable.

The SplObserver interface

Introduction

The SplObserver interface is used alongside SplSubject to implement the Observer Design Pattern.

Interface synopsis

SplObserver
class SplObserver {
/* Methods */
abstract public void update ( SplSubject $subject )
}

The SplSubject interface

Introduction

The SplSubject interface is used alongside SplObserver to implement the Observer Design Pattern.

Interface synopsis

SplSubject
class SplSubject {
/* Methods */
abstract public void attach ( SplObserver $observer )
abstract public void detach ( SplObserver $observer )
abstract public void notify ( void )
}