doc_id." - Dokument: ".$documents_row->doc_name."
"; echo "URL: ".$documents_row->doc_url."
"; echo "Tags: "; $tags = mysql_query("SELECT * FROM tags WHERE doc_id = $documents_row->doc_id"); while($tags_row = mysql_fetch_object($tags)) { echo "".$tags_row->tag_name." (".$tags_row->tag_count."), "; } echo "

"; } $ourTagA = "Prolog"; $ourTagB = "development"; $both = 0; echo $ourTagA." + ".$ourTagB."

"; $tagA = mysql_query("SELECT * FROM tags WHERE tag_name = '$ourTagA'"); $tagAcount = mysql_num_rows($tagA); echo "Dokumentanzahl mit Tag ".$ourTagA.": ".$tagAcount."
";; $tagB = mysql_query("SELECT * FROM tags WHERE tag_name = '$ourTagB'"); while($tagB_row = mysql_fetch_object($tagB)) { $tagAtoo = mysql_query("SELECT * FROM tags WHERE tag_name = '$ourTagA' AND doc_id = $tagB_row->doc_id"); if (mysql_num_rows($tagAtoo) != 0) { $both = $both + 1; } } $tagBcount = mysql_num_rows($tagB); echo "Dokumentanzahl mit Tag ".$ourTagB.": ".$tagBcount."
"; echo "Dokumentanzahl mit beiden Tags zusammen: ".$both."

"; $koinzidenz = (2 * $both) / ($tagAcount + $tagBcount); echo "Koinzidenzwert: ".$koinzidenz; ?>