the query is the following :
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT distinct ?value
from <http://fr.dbpedia.org>
WHERE{
?sub rdfs:label ?value.
FILTER (CONTAINS(LCASE(?value), 'data')).
}
limit 10
it works perfectly fine using the DBpedia endpoint but when I try to use it from PHP using ARC2 I get the following error :
Query errorsArray ( [0] => Incomplete FILTER in ARC2_SPARQLPlusParser [ 1] => Incomplete or invalid Group Graph pattern. Could not handle " " in ARC2_SPARQLPlusParser )
Any ideas what could be the problem ? thank's!
ARC2 does not support full SPARQL 1.1 (see the source code), thus, CONTAINS is not supported. You can try to use REGEX instead:
PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema#
SELECT distinct ?value
from <http://fr.dbpedia.org>
WHERE{
?sub rdfs:label ?value.
FILTER (REGEX(STR(?value), 'data', 'i')).
}
limit 10