public function EasyRdf_Collection::getCollectionNode in Zircon Profile 8.0

Same name and namespace in other branches

8 vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php \EasyRdf_Collection::getCollectionNode()

Get a node for a particular offset into the collection

This function may not return the item you requested, if it does not exist. Please check the $postion parameter returned.

If the offset is null, then the last node in the collection (before rdf:nil) will be returned.

Parameters

integer $offset The offset into the collection (or null):

Return value

array $node, $postion The node object and postion of the node

7 calls to EasyRdf_Collection::getCollectionNode()

EasyRdf_Collection::append in vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php: Append an item to the end of the collection
EasyRdf_Collection::count in vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php: Counts the number of items in the collection
EasyRdf_Collection::offsetExists in vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php: Array Access: check if a position exists in collection using array syntax
EasyRdf_Collection::offsetGet in vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php: Array Access: get an item at a specified position in collection using array syntax
EasyRdf_Collection::offsetSet in vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php: Array Access: set an item at a positon in collection using array syntax

... See full list

File

vendor/easyrdf/easyrdf/lib/EasyRdf/Collection.php, line 165

Class

EasyRdf_Collection: Sub-class of EasyRdf_Resource that represents an RDF collection (rdf:List)

Code

public function getCollectionNode($offset) {
  $position = 1;
  $node = $this;
  $nil = $this->graph
    ->resource('rdf:nil');
  while ($rest = $node
    ->get('rdf:rest') and $rest !== $nil and (is_null($offset) or $position < $offset)) {
    $node = $rest;
    $position++;
  }
  return array(
    $node,
    $position,
  );
}

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