This library is a port of google/gson written in PHP. Its purpose is to easily handle the conversion between PHP objects and JSON. It shares some of google/gson's goals such as:
- A simple interface using
toJson
andfromJson
methods - Enable serialization and deserialization of 3rd party classes
- Allow schema differences between PHP objects and JSON
And in addition:
- Utilize PHP 7 scalar type hints to be intelligent about property types
- Limit the number of annotations required to use
Here are some simple use cases to get a feel for how the library works
If you have a PHP object you want to convert to JSON
// $object obtained elsewhere
$gson = Gson::builder()->build();
$json = $gson->toJson($object);
What this is doing is using the provided GsonBuilder
to set up the
Gson
object with sensible defaults. Calling Gson::toJson
and
passing in an object will return a string of JSON.
The reverse is very similar
// $json obtained elsewhere
$gson = Gson::builder()->build();
$fooObject = $gson->fromJson($json, Foo::class);
Now we call Gson::fromJson
and pass in the json as a string and the type
of object we'd like to map to. In this example, we will be getting
an instantiated Foo
object back.
If you want to convert your object to a JsonElement, there's a convenience method to do that for you.
// $object obtained elsewhere
$gson = Gson::builder()->build();
$jsonElement = $gson->toJsonElement($object);
This provides a simple way to manipulate the JSON before final encoding.
From here, you can call json_encode()
on the element to convert it to
JSON.
$jsonElement = $gson->toJsonElement($object);
$jsonElement->asObject()->addString('foo', 'bar');
$json = json_encode($jsonElement);
Note that this will do a full conversion from the object to JSON, then back to JsonElements. This is done to take advantage of all custom serialization rules.
- Customizing Serialization/Deserialization
- Excluding Classes and Properties
- Customizing Class Instantiation
- Types
- Json Element
- Annotation Reference
- Advanced Usage
This library requires PHP 7.1
composer require tebru/gson-php
This project is licensed under the MIT license. Please see the LICENSE
file for more information.