Source code for this directory is on github at https://github.com/iedadata/resources/tree/master/iedaisoschemaorg. See the readme there for some additional documentation.

The .htaccess file takes a URL like http://{$_SERVER['HTTP_HOST']}/metadata/{NNNNNN} and rewrites to pass to the displaymetadata.php page with file=NNNNNN as the parameter. This will generate and display an html view for that resource with a schema.org JSON-LD script in the header. 

The html documents will have a JSON-LD Script in the html header with a schema.org
version of the metadata following conventions developed by the NSF EarthCube P418 project

displaymetadata.php is the main PHP page; it gets an ISO xml record and transforms to html using the
xml transform (xslt) files in this direcory.

Calling parameters: displaymetadata.php?file={NNNNNN} or displaymetadata.php?file={NNNNNN}.XXX

where NNNNNN is the 6 digit number used by IEDA as the final token in DOI string, e.g. for doi:10.1594/IEDA/100096, NNNNNN would be '100096'.  The file extension is optional, '.xml' will return the ISO xml raw, '.htm' or '.html' will return the html view (same as no file extension).