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Informations about the package cbor-php
CBOR for PHP
Scope
This library will help you to decode and create objects using the Concise Binary Object Representation (CBOR - RFC8949).
Installation
Install the library with Composer: composer require spomky-labs/cbor-php.
This project follows the semantic versioning strictly.
Support
I bring solutions to your problems and answer your questions.
If you really love that project, and the work I have done or if you want I prioritize your issues, then you can help me out for a couple of :beers: or more!
Or
Documentation
Object Creation
This library supports all Major Types defined in the RFC8949 and has capabilities to support any kind of Tags (Major Type 6) and Other Objects (Major Type 7).
Each object have at least:
- a static method
create. This method will correctly instantiate the object. - can be converted into a binary string:
$object->__toString();or(string) $object.
Positive Integer (Major Type 0)
Negative Integer (Major Type 1)
Byte String / Indefinite Length Byte String (Major Type 2)
Byte String and Indefinite Length Byte String objects have the same major type but are handled by two different classes in this library.
Text String / Indefinite Length Text String (Major Type 3)
Text String and Indefinite Length Text String objects have the same major type but are handled by two different classes in this library.
List / Indefinite Length List (Major Type 4)
List and Indefinite Length List objects have the same major type but are handled by two different classes in this library. Items in the List object can be any of CBOR Object type.
Map / Indefinite Length Map (Major Type 5)
Map and Indefinite Length Map objects have the same major type but are handled by two different classes in this library. Keys and values in the Map object can be any of CBOR Object type.
However, be really careful with keys. Please follow the recommendation hereunder:
- Keys should not be duplicated
- Keys should be of type Positive or Negative Integer, (Indefinite Length)Byte String or (Indefinite Length)Text String. Other types may cause errors.
Tags (Major Type 6)
This library can support any kind of tags. It comes with some of the thew described in the specification:
- Base 16 encoding
- Base 64 encoding
- Base 64 Url Safe encoding
- Big Float
- Decimal Fraction
- Epoch
- Timestamp
- Positive Big Integer
- Negative Big Integer
You can easily create your own tag by extending the abstract class CBOR\TagObject.
This library provides a CBOR\Tag\GenericTag class that can be used for any other unknown/unsupported tags.
Other Objects (Major Type 7)
This library can support any kind of "other objects". It comes with some of the thew described in the specification:
- False
- True
- Null
- Undefined
- Half Precision Float
- Single Precision Float
- Double Precision Float
- Simple Value
You can easily create your own object by extending the abstract class CBOR\OtherObject.
This library provides a CBOR\OtherObject\GenericTag class that can be used for any other unknown/unsupported objects.
Because PHP does not support an 'undefined' object, the normalization method will return 'undefined'.
Example
The encoded result will be 0xa37428efbda1e29795e280bfe29795efbda129e29aa183f5f4c482211904d21907d0f66464617465c11a5e0be100.
Object Loading
If you want to load a CBOR encoded string, you just have to instantiate a CBOR\Decoder class.
This class does not need any argument.
If needed, you can define custom sets of Tag and Other Object support managers.
Then, the decoder will read the data you want to load.
The data has to be handled by an object that implements the CBOR\Stream interface.
This library provides a CBOR\StringStream class to stream the string.
Contributing
Requests for new features, bug fixed and all other ideas to make this project useful are welcome. The best contribution you could provide is by fixing the opened issues where help is wanted.
Please report all issues in the main repository.
Please make sure to follow these best practices.
Licence
This project is release under MIT licence.
