public function flatten($element)
    {
        $nodeMap = new JsonObject();
        $nodeMap->{'-' . JsonLD::DEFAULT_GRAPH} = new JsonObject();

        $this->generateNodeMap($nodeMap, $element);

        $defaultGraph = $nodeMap->{'-' . JsonLD::DEFAULT_GRAPH};
        unset($nodeMap->{'-' . JsonLD::DEFAULT_GRAPH});

        // Store named graphs in the @graph property of the node representing
        // the graph in the default graph
        foreach ($nodeMap as $graphName => $graph) {
            if (!isset($defaultGraph->{$graphName})) {
                $defaultGraph->{$graphName} = new JsonObject();
                $defaultGraph->{$graphName}->{'@id'} = substr($graphName, 1);
            }

            $graph = (array) $graph;
            ksort($graph);
            $defaultGraph->{$graphName}->{'@graph'} = array_values(
                array_filter($graph, array($this, 'hasNodeProperties'))
            );
        }

        $defaultGraph = (array) $defaultGraph;
        ksort($defaultGraph);

        return array_values(
            array_filter($defaultGraph, array($this, 'hasNodeProperties'))
        );
    }
public function flatten($element)
    {
        $nodeMap = new JsonObject();
        $nodeMap->{'-' . JsonLD::DEFAULT_GRAPH} = new JsonObject();

        $this->generateNodeMap($nodeMap, $element);

        $defaultGraph = $nodeMap->{'-' . JsonLD::DEFAULT_GRAPH};
        unset($nodeMap->{'-' . JsonLD::DEFAULT_GRAPH});

        // Store named graphs in the @graph property of the node representing
        // the graph in the default graph
        foreach ($nodeMap as $graphName => $graph) {
            if (!isset($defaultGraph->{$graphName})) {
                $defaultGraph->{$graphName} = new JsonObject();
                $defaultGraph->{$graphName}->{'@id'} = substr($graphName, 1);
            }

            $graph = (array) $graph;
            ksort($graph);
            $defaultGraph->{$graphName}->{'@graph'} = array_values(
                array_filter($graph, array($this, 'hasNodeProperties'))
            );
        }

        $defaultGraph = (array) $defaultGraph;
        ksort($defaultGraph);

        return array_values(
            array_filter($defaultGraph, array($this, 'hasNodeProperties'))
        );
    }
public function flatten ( $ element ) { $ nodeMap = new JsonObject ( ) ; $ nodeMap -> { '-' . JsonLD :: DEFAULT_GRAPH } = new JsonObject ( ) ; $ this -> generateNodeMap ( $ nodeMap , $ element ) ; $ defaultGraph = $ nodeMap -> { '-' . JsonLD :: DEFAULT_GRAPH } ; unset ( $ nodeMap -> { '-' . JsonLD :: DEFAULT_GRAPH } ) ; // Store named graphs in the @graph property of the node representing // the graph in the default graph foreach ( $ nodeMap as $ graphName => $ graph ) { if ( ! isset ( $ defaultGraph -> { $ graphName } ) ) { $ defaultGraph -> { $ graphName } = new JsonObject ( ) ; $ defaultGraph -> { $ graphName } -> { '@id' } = substr ( $ graphName , 1 ) ; } $ graph = ( array ) $ graph ; ksort ( $ graph ) ; $ defaultGraph -> { $ graphName } -> { '@graph' } = array_values ( array_filter ( $ graph , array ( $ this , 'hasNodeProperties' ) ) ) ; } $ defaultGraph = ( array ) $ defaultGraph ; ksort ( $ defaultGraph ) ; return array_values ( array_filter ( $ defaultGraph , array ( $ this , 'hasNodeProperties' ) ) ) ; }
Flattens a JSON-LD document

@param mixed  $element A JSON-LD element to be flattened.

@return array An array representing the flattened element.
Flattens a JSON - LD document