Documentation

JsonLdSerializer
in package
implements Serializer

Thin wrapper providing RdfInterface\Serializer API for JSON-LD the parser provided by the ml/json-ld library.

Be aware the implementation provided by the ml/json-ld library is not really focused on performance. If you value speed and/or low memory footprint consider using other serialization format.

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author

zozlak

Interfaces, Classes, Traits and Enums

Serializer

Table of Contents

TRANSFORM_COMPACT  = 3
TRANSFORM_EXPAND  = 1
TRANSFORM_FLATTEN  = 2
TRANSFORM_NONE  = 0
$baseUri  : string|null
$context  : mixed
$jsonEncodeFlags  : int
$options  : array<string|int, mixed>
$transform  : int
__construct()  : mixed
serialize()  : string
serializeStream()  : void

Constants

Properties

Methods

__construct()

public __construct([string $baseUri = null ][, int $transform = self::TRANSFORM_NONE ][, int $jsonEncodeFlags = JSON_UNESCAPED_SLASHES ][, mixed $context = null ][, array<string, mixed> $options = [] ]) : mixed
Parameters
$baseUri : string = null
$transform : int = self::TRANSFORM_NONE

transformation to be applied before serializing to string. One of JsonLdSerializer::TRANSFORM_NONE (default), JsonLdSerializer::TRANSFORM_EXPAND, JsonLdSerializer::TRANSFORM_FLATTEN or JsonLdSerializer::TRANSFORM_COMPACT. In case of JsonLdSerializer::TRANSFORM_COMPACT the $context parameter has to be provided.

$jsonEncodeFlags : int = JSON_UNESCAPED_SLASHES

flags to be passed to the json_encode() call serializing output to a string - see https://www.php.net/manual/en/function.json-encode.php .

$context : mixed = null

context to be passed to ML\JsonLD\JsonLD::compact() or ML\JsonLD\JsonLD::flatten() when $transform equals JsonLdSerializer::TRANSFORM_COMPACT or JsonLdSerializer::TRANSFORM_FLATTEN, repectively.

$options : array<string, mixed> = []

options to be passed to the corresponding ML\JsonLD\JsonLD method (expand(), compact() or flatten() according to the $transform parameter value). If you would like these methods to be better documented, then you are not then only one... :-(

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see
JsonLD::expand()
see
JsonLD::flatten()
see
JsonLD::compact()
see
json_encode()
Return values
mixed —

serialize()

public serialize(QuadIterator $graph[, RdfNamespace|null $nmsp = null ]) : string
Parameters
$graph : QuadIterator
$nmsp : RdfNamespace|null = null

If passed, it's used for compacting the output. Unfortunately only property URIs can be compacted that way (of course for that full property URIs must be registered as "namespaces").

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throws
RdfIoException
Return values
string —

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