Json/Encoder.php
Zend Framework
LICENSE
This source file is subject to the new BSD license that is bundled
with this package in the file LICENSE.txt.
It is also available through the world-wide-web at this URL:
http://framework.zend.com/license/new-bsd
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- Category
- Zend
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
- Package
- Zend_Json
- Version
- $Id$
Package: Zend_JsonEncode PHP constructs to JSON
- Category
- Zend
- Copyright
- Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
Properties
array $_options = array()Additional options used during encoding
Default valuearray()Details- Type
- array
array $_visited = array()Array of visited objects; used to prevent cycling.
Default valuearray()Details- Type
- array
Methods
__construct(boolean $cycleCheck = false, array $options = array()) : voidParameters| Name | Type | Description |
|---|
| $cycleCheck | boolean | Whether or not to check for recursion when encoding |
|---|
| $options | array | Additional options used during encoding |
|---|
_encodeArray(\array& $array) : stringJSON encode an array value
Recursively encodes each value of an array and returns a JSON encoded
array string.
Arrays are defined as integer-indexed arrays starting at index 0, where
the last index is (count($array) -1); any deviation from that is
considered an associative array, and will be encoded as such.
ParametersReturns
_encodeConstants(\ReflectionClass $cls) : stringstaticEncode the constants associated with the ReflectionClass
parameter. The encoding format is based on the class2 format
ParametersReturns| Type | Description |
|---|
| string | Encoded constant block in class2 format |
_encodeDatum(\mixed& $value) : stringJSON 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.
ParametersReturns_encodeMethods(\ReflectionClass $cls) : stringstaticEncode the public methods of the ReflectionClass in the
class2 format
ParametersReturns| Type | Description |
|---|
| string | Encoded method fragment |
_encodeObject(object $value) : stringEncode 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| Name | Type | Description |
|---|
| $value | object | |
|---|
ReturnsThrows| Exception | Description |
|---|
| \Zend_Json_Exception | If recursive checks are enabled and the object has been serialized previously |
_encodeString( $string) : stringJSON encode a string value by escaping characters as necessary
Parameters| Name | Type | Description |
|---|
| $string | | |
|---|
Returns _encodeValue(mixed $value) : stringRecursive driver which determines the type of value to be encoded
and then dispatches to the appropriate method. $values are either
- objects (returns from {@link _encodeObject()})
- arrays (returns from {@link _encodeArray()})
- basic datums (e.g. numbers or strings) (returns from {@link _encodeDatum()})
Parameters| Name | Type | Description |
|---|
| $value | mixed | The value to be encoded |
|---|
Returns| Type | Description |
|---|
| string | Encoded value |
_encodeVariables(\ReflectionClass $cls) : stringstaticEncode the public properties of the ReflectionClass in the class2
format.
ParametersReturns| Type | Description |
|---|
| string | Encode properties list |
_utf82utf16(string $utf8) : stringstaticConvert 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
Parameters| Name | Type | Description |
|---|
| $utf8 | string | UTF-8 character |
|---|
Returns| Type | Description |
|---|
| string | UTF-16 character |
Details- Link
- http://solarphp.com
_wasVisited(mixed $value) : booleanDetermine if an object has been serialized already
Parameters| Name | Type | Description |
|---|
| $value | mixed | |
|---|
Returns 
encode(mixed $value, boolean $cycleCheck = false, array $options = array()) : stringstaticUse the JSON encoding scheme for the value specified
Parameters| Name | Type | Description |
|---|
| $value | mixed | The value to be encoded |
|---|
| $cycleCheck | boolean | Whether or not to check for possible object recursion when encoding |
|---|
| $options | array | Additional options used during encoding |
|---|
Returns| Type | Description |
|---|
| string | The encoded value |
encodeClass(string $className, string $package = '') : stringstaticEncodes 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| Name | Type | Description |
|---|
| $className | string | The name of the class, the class must be
instantiable using a null constructor |
|---|
| $package | string | Optional package name appended to JavaScript
proxy class name |
|---|
Returns| Type | Description |
|---|
| string | The class2 (JavaScript) encoding of the class |
ThrowsencodeClasses(array $classNames, string $package = '') : stringstaticEncode several classes at once
Returns JSON encoded classes, using {@link encodeClass()}.
Parameters| Name | Type | Description |
|---|
| $classNames | array | |
|---|
| $package | string | |
|---|
Returns 
Classes