Zend_Json_Encoder Class Reference

Static Public Member Functions
static	encode ($value, $cycleCheck=false, $options=array())
	Use the JSON encoding scheme for the value specified.
static	encodeClass ($className, $package= '')
	Encodes the given $className into the class2 model of encoding PHP classes into JavaScript class2 classes.
static	encodeClasses (array $classNames, $package= '')
	Encode several classes at once.
static	encodeUnicodeString ($value)
	Encode Unicode Characters to ASCII syntax.

Protected Member Functions
	__construct ($cycleCheck=false, $options=array())
	Constructor.
	_encodeValue (&$value)
	Recursive driver which determines the type of value to be encoded and then dispatches to the appropriate method.
	_encodeObject (&$value)
	Encode an object to JSON by encoding each of the public properties.
	_wasVisited (&$value)
	Determine if an object has been serialized already.
	_encodeArray (&$array)
	JSON encode an array value.
	_encodeDatum (&$value)
	JSON encode a basic data type (string, number, boolean, null)
	_encodeString (&$string)
	JSON encode a string value by escaping characters as necessary.

Static Protected Member Functions
static	_utf82utf16 ($utf8)
	Convert a string from one UTF-8 char to one UTF-16 char.

Protected Attributes
	$_cycleCheck
	$_options = array()
	$_visited = array()

Constructor & Destructor Documentation

__construct (   $cycleCheck = false,   $options = array()  )

protected

Constructor.

Parameters

boolean	$cycleCheck	Whether or not to check for recursion when encoding
array	$options	Additional options used during encoding

Returns

void

Member Function Documentation

_encodeArray ( &  $array )

protected

JSON encode an array value.

Recursively encodes each value of an array and returns a JSON encoded array string.

Arrays are defined as integer-indexed arrays starting at index 0, where the last index is (count($array) -1); any deviation from that is considered an associative array, and will be encoded as such.

Parameters

array&

$array

Returns

string

_encodeDatum ( &  $value )

protected

JSON encode a basic data type (string, number, boolean, null)

If value type is not a string, number, boolean, or null, the string 'null' is returned.

Parameters

mixed&

$value

Returns

string

_encodeObject ( &  $value )

protected

Encode an object to JSON by encoding each of the public properties.

A special property is added to the JSON object called '__className' that contains the name of the class of $value. This is used to decode the object on the client into a specific class.

Parameters

object

$value

Returns

string

Exceptions

Zend_Json_Exception

If recursive checks are enabled and the object has been serialized previously

_encodeString ( &  $string )

protected

JSON encode a string value by escaping characters as necessary.

Parameters

string&

$value

Returns

string

_encodeValue ( &  $value )

protected

Recursive driver which determines the type of value to be encoded and then dispatches to the appropriate method.

$values are either

• objects (returns from _encodeObject())
• arrays (returns from _encodeArray())
• basic datums (e.g. numbers or strings) (returns from _encodeDatum())

Parameters

mixed

$value

The value to be encoded

Returns

string Encoded value

static _utf82utf16 (   $utf8 )

staticprotected

Convert a string from one UTF-8 char to one UTF-16 char.

Normally should be handled by mb_convert_encoding, but provides a slower PHP-only method for installations that lack the multibye string extension.

This method is from the Solar Framework by Paul M. Jones

string $utf8 UTF-8 character string UTF-16 character

_wasVisited ( &  $value )

protected

Determine if an object has been serialized already.

Parameters

mixed

$value

Returns

boolean

static encode (   $value,   $cycleCheck = false,   $options = array()  )

static

Use the JSON encoding scheme for the value specified.

Parameters

mixed	$value	The value to be encoded
boolean	$cycleCheck	Whether or not to check for possible object recursion when encoding
array	$options	Additional options used during encoding

Returns

string The encoded value

static encodeClass (   $className,   $package = ''  )

static

Encodes the given $className into the class2 model of encoding PHP classes into JavaScript class2 classes.

NOTE: Currently only public methods and variables are proxied onto the client machine

Parameters

string	$className	The name of the class, the class must be instantiable using a null constructor
string	$package	Optional package name appended to JavaScript proxy class name

Returns

string The class2 (JavaScript) encoding of the class

Exceptions

Zend_Json_Exception

static encodeClasses ( array  $classNames,   $package = ''  )

static

Encode several classes at once.

Returns JSON encoded classes, using encodeClass().

Parameters

array	$classNames
string	$package

Returns

string

static encodeUnicodeString (   $value )

static

Encode Unicode Characters to ASCII syntax.

This algorithm was originally developed for the Solar Framework by Paul M. Jones

http://svn.solarphp.com/core/trunk/Solar/Json.php string $value string

Iterate over every character in the string, escaping with a slash or encoding to UTF-8 where necessary

Member Data Documentation

$_cycleCheck

protected

$_options = array()

protected

$_visited = array()

protected