first key: 404;https://www_edmonds_edu:443/programs/hort/documents/syllabi/210_pdf
first_value:
new_first_key: 404;https://www_edmonds_edu:443/programs/hort/documents/syllabi/210_pdf
Array ( [404;https://www_edmonds_edu:443/programs/hort/documents/syllabi/210_pdf] => ) array(1) { ["404;https://www_edmonds_edu:443/programs/hort/documents/syllabi/210_pdf"]=> string(0) "" }