Miscellaneous Classes and Interfaces

Table of Contents

ArrayObject — The ArrayObject class
- ArrayObject::append — Appends the value
- ArrayObject::asort — Sort the entries by value
- ArrayObject::__construct — Construct a new array object
- ArrayObject::count — Get the number of public properties in the ArrayObject
- ArrayObject::exchangeArray — Exchange the array for another one.
- ArrayObject::getArrayCopy — Creates a copy of the ArrayObject.
- ArrayObject::getFlags — Gets the behavior flags.
- ArrayObject::getIterator — Create a new iterator from an ArrayObject instance
- ArrayObject::getIteratorClass — Gets the iterator classname for the ArrayObject.
- ArrayObject::ksort — Sort the entries by key
- ArrayObject::natcasesort — Sort an array using a case insensitive "natural order" algorithm
- ArrayObject::natsort — Sort entries using a "natural order" algorithm
- ArrayObject::offsetExists — Returns whether the requested index exists
- ArrayObject::offsetGet — Returns the value at the specified index
- ArrayObject::offsetSet — Sets the value at the specified index to newval
- ArrayObject::offsetUnset — Unsets the value at the specified index
- ArrayObject::serialize — Serialize an ArrayObject
- ArrayObject::setFlags — Sets the behavior flags.
- ArrayObject::setIteratorClass — Sets the iterator classname for the ArrayObject.
- ArrayObject::uasort — Sort the entries with a user-defined comparison function and maintain key association
- ArrayObject::uksort — Sort the entries by keys using a user-defined comparison function
- ArrayObject::unserialize — Unserialize an ArrayObject
SplObserver — The SplObserver interface
- SplObserver::update — Receive update from subject
SplSubject — The SplSubject interface
- SplSubject::attach — Attach an SplObserver
- SplSubject::detach — Detach an observer
- SplSubject::notify — Notify an observer

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 )

}