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arrays.rst	2.34 KB	-rw-rw-r--	2022-08-24 15:26
exclusion_strategies.rst	11.18 KB	-rw-rw-r--	2022-08-24 15:26
object_constructor.rst	1.81 KB	-rw-rw-r--	2022-08-24 15:26
stdclass.rst	650 B	-rw-rw-r--	2022-08-24 15:26

Rename

Serializing arrays and hashes
=============================

Introduction
------------
Serializing arrays and hashes (a concept that in PHP has not explicit boundaries)
can be challenging. The serializer offers via ``@Type`` annotation different options
to configure its behavior, but if we try to serialize directly an array
(not as a property of an object), we need to use context information to determine the
array "type"

Examples
--------

In case of a JSON serialization:

.. code-block :: php

<?php

// default (let the PHP's json_encode function decide)
    $serializer->serialize([1, 2]); //  [1, 2]
    $serializer->serialize(['a', 'b']); //  ['a', 'b']
    $serializer->serialize(['c' => 'd']); //  {"c" => "d"}

// same as default (let the PHP's json_encode function decide)
    $serializer->serialize([1, 2], SerializationContext::create()->setInitialType('array')); //  [1, 2]
    $serializer->serialize([1 => 2], SerializationContext::create()->setInitialType('array')); //  {"1": 2}
    $serializer->serialize(['a', 'b'], SerializationContext::create()->setInitialType('array')); //  ['a', 'b']
    $serializer->serialize(['c' => 'd'], SerializationContext::create()->setInitialType('array')); //  {"c" => "d"}

// typehint as strict array, keys will be always discarded
    $serializer->serialize([], SerializationContext::create()->setInitialType('array<integer>')); //  []
    $serializer->serialize([1, 2], SerializationContext::create()->setInitialType('array<integer>')); //  [1, 2]
    $serializer->serialize(['a', 'b'], SerializationContext::create()->setInitialType('array<integer>')); //  ['a', 'b']
    $serializer->serialize(['c' => 'd'], SerializationContext::create()->setInitialType('array<string>')); //  ["d"]

// typehint as hash, keys will be always considered
    $serializer->serialize([], SerializationContext::create()->setInitialType('array<integer,integer>')); //  {}
    $serializer->serialize([1, 2], SerializationContext::create()->setInitialType('array<integer,integer>')); //  {"0" : 1, "1" : 2}
    $serializer->serialize(['a', 'b'], SerializationContext::create()->setInitialType('array<integer,integer>')); //  {"0" : "a", "1" : "b"}
    $serializer->serialize(['c' => 'd'], SerializationContext::create()->setInitialType('array<string,string>')); //  {"c" : "d"}

.. note ::

This applies only for the JSON serialization.