Select a Category

Each category contains one or more topics. Click on the Category that best describes the subject matter of the document, and you will be provided with a list of topics from which to narrow down your selection. Click on a Category again to collapse it. Click on the appropriate topic to view the list of products, chapters, data briefs, fact sheets, or reports which relate to that topic.

query($qCategories); //Construct html list of Categories; for each Category, execute query for topic list. //NOTE: this is not recursive, and thus is only capable of dealing with a two-level hierarchy. $categoryName = ""; if ($result) { while($row = $result->fetch_assoc()) { $categoryID = $row["WebTopicID"]; $categoryName = $row["WebTopicName"]; echo "

" . $categoryName . "

"; $qSubCategories = "SELECT WebTopicID, WebTopicNickname, WebTopicName, ParentID FROM WebTopics WHERE ParentID=" . $categoryID . " ORDER BY WebTopicName"; $subCatListRS = $conn->query($qSubCategories); echo "
"; while($row2 = $subCatListRS->fetch_assoc()) { $subCategoryID = $row2["WebTopicID"]; $subCatName = $row2["WebTopicName"]; echo "" . $subCatName . ""; } echo "
"; } } else { echo mysql_error(); } $result->free(); $subCatListRS->free(); $conn->close(); ?>