functions.php

php 开发的内容管理系统

<?php
/**
 * Tag management for XOOPS
 *
 * @copyright	The XOOPS project http://www.xoops.org/
 * @license		http://www.fsf.org/copyleft/gpl.html GNU public license
 * @author		Taiwen Jiang (phppp or D.J.) <[e-mail]>
 * @since		1.00
 * @version		$Id$
 * @package		module::tag
 */

if (!defined('XOOPS_ROOT_PATH')){ exit(); }

if(!defined("TAG_FUNCTIONS")):
define("TAG_FUNCTIONS",1);

include XOOPS_ROOT_PATH."/modules/tag/include/vars.php";

function &tag_getTagHandler()
{
	$tag_handler = null;
	if(!is_object($GLOBALS["xoopsModule"]) || "tag" != $GLOBALS["xoopsModule"]->getVar("dirname")) {
		$module_handler =& xoops_gethandler('module');
		$module =& $module_handler->getByDirname("tag");
		if(!$module || !$module->getVar("isactive")){
			return $tag_handler;
		}
	}
	$tag_handler = @xoops_getmodulehandler("tag", "tag", true);
	return $tag_handler;
}

/**
 * Function to parse arguments for a page according to $_SERVER['REQUEST_URI']
 * 
 * @var array $args_numeric	array of numeric variable values
 * @var array $args			array of indexed variables: name and value
 * @var array $args_string	array of string variable values
 *
 * @return bool	true on args parsed
 */

/* known issues:
 * - "/" in a string 
 * - "&" in a string 
*/
function tag_parse_args(&$args_numeric, &$args, &$args_string)
{
	$args_abb = array(
						"c"	=> "catid", 
						"m"	=> "modid", 
						"s"	=> "start", 
						"t"	=> "tag", 
						);
	$args = array();
	$args_numeric = array();
	$args_string = array();
	if(preg_match("/[^\?]*\.php[\/|\?]([^\?]*)/i", $_SERVER['REQUEST_URI'], $matches)){
		$vars = preg_split("/[\/|&]/", $matches[1]);
		$vars = array_map("trim", $vars);
		if(count($vars)>0) {
			foreach($vars as $var){
				if(is_numeric($var)){
					$args_numeric[] = $var;
				}elseif(false === strpos($var, "=")){
					if(is_numeric(substr($var, 1))){
						$args[$args_abb[strtolower($var{0})]] = intval(substr($var, 1));
					}else{
						$args_string[] = urldecode($var);
					}
				}else{
					parse_str($var, $args);
				}
			}
		}
	}
	return (count($args) + count($args_numeric) + count($args_string) == 0) ? null : true;
}

/**
 * Function to parse tags(keywords) upon defined delimiters
 * 
 * @var		string	$text_tag	text to be parsed
 *
 * @return	array	tags
 */
function tag_parse_tag($text_tag)
{
	$tags = array();
	if(empty($text_tag)) return $tags;
	$moduleConfig = tag_load_config();
	
	$delimiters = empty($moduleConfig["tag_delimiter"]) ? array(",", " ", "|") : $moduleConfig["tag_delimiter"];
	//$text_tag = preg_replace("/(".implode("|", array_map("preg_quote", $delimiters)).")/", ",", $text_tag);
	foreach($delimiters as $delimiter) {
		$text_tag = str_replace($delimiter, ",", $text_tag);
	}
	$tags_raw = explode(",", $text_tag);
	$tags = array_filter(array_map("trim", $tags_raw));
	
	return $tags;
}

endif;
?>