Zend_Filter_Null Class Reference

Public Member Functions
	__construct ($options=null)
	Constructor.
	getType ()
	Returns the set null types.
	setType ($type=null)
	Set the null types.
	filter ($value)
	Defined by Zend_Filter_Interface.

Public Attributes
const	BOOLEAN = 1
const	INTEGER = 2
const	EMPTY_ARRAY = 4
const	STRING = 8
const	ZERO = 16
const	ALL = 31

Protected Attributes
	$_constants
	$_type = self::ALL

Constructor & Destructor Documentation

__construct

(

$options = null

)

Constructor.

Parameters

string | array | Zend_Config

$options

OPTIONAL

Member Function Documentation

filter

(

$value

)

Defined by Zend_Filter_Interface.

Returns null representation of $value, if value is empty and matches types that should be considered null.

Parameters

string

$value

Returns

string

Implements Zend_Filter_Interface.

getType

(

)

Returns the set null types.

Returns

array

setType

(

$type = null

)

Set the null types.

Parameters

integer | array

$type

Exceptions

Zend_Filter_Exception

Returns

Zend_Filter_Null

Member Data Documentation

$_constants

protected

Initial value:

= array(
        self::BOOLEAN     => 'boolean',
        self::INTEGER     => 'integer',
        self::EMPTY_ARRAY => 'array',
        self::STRING      => 'string',
        self::ZERO        => 'zero',
        self::ALL         => 'all'
    )

$_type = self::ALL

protected

const ALL = 31

const BOOLEAN = 1

const EMPTY_ARRAY = 4

const INTEGER = 2

const STRING = 8

const ZERO = 16