category.php

<?php
/*
	Question2Answer by Gideon Greenspan and contributors
	http://www.question2answer.org/

	File: qa-include/qa-ajax-category.php
	Description: Server-side response to Ajax category information requests


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

	require_once QA_INCLUDE_DIR.'db/selects.php';


	$categoryid=qa_post_text('categoryid');
	if (!strlen($categoryid))
		$categoryid=null;

	list($fullcategory, $categories)=qa_db_select_with_pending(
		qa_db_full_category_selectspec($categoryid, true),
		qa_db_category_sub_selectspec($categoryid)
	);

	echo "QA_AJAX_RESPONSE\n1\n";

	echo qa_html(strtr(@$fullcategory['content'], "\r\n", '  ')); // category description

	foreach ($categories as $category)
		echo "\n".$category['categoryid'].'/'.$category['title']; // subcategory information


/*
	Omit PHP closing tag to help avoid accidental output
*/