I'm wondering if there is a website or a way to get the list of all the Schema.org schemas under a specific category (ex: Place).
I found the complete list on Schema.org - they also provide a JSON-LD file - but there's no way to filter/order this easily.
My goal is to get the list of all the places in a nice array (PHP, JSON, whatever).
Most vocabularies/ontologies are defined using RDF.
The vocabulary Schema.org is no exception. The canonical/machine-readable representation of Schema.org is provided in HTML+RDFa:
http://schema.org/docs/schema_org_rdfa.html
This file always contains the current release. If you are interested in specific versions of Schema.org, snapshots are available.
As a quick overview:
Each Schema.org type is of type rdfs:Class.
rdfs:subClassOf property.Each Schema.org property is of type rdf:Property.
Sub-properties are specified with the rdfs:subPropertyOf property.
The domains of a property (i.e., on which types this property is expected) are specified with the schema:domainIncludes property.
The ranges of a property (i.e., which values are expected) are specified with the schema:rangeIncludes property.
RDFa is a RDF serialization which many RDF parsers support (if not, it’s simple to automatically convert it into other RDF serializations, like Turtle, RDF/XML, or JSON-LD). There are many different tools and libraries available for this purpose. (You should use an RDF-aware tool instead of trying to parse the file as HTML.)
