keywords.php

来自「php 开发的内容管理系统」· PHP 代码 · 共 84 行

<?php
/**
 * Article management
 *
 * @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::article
 */

// The solution is not ready for HTML yet.
// Another trial: http://aidan.dotgeek.org/lib/?file=function.str_highlight.php
// -- D.J.

/*
 * Adapted from
 * ------------
 * @description	 Advanced keyword highlighter, keep HTML tags safe.
 * @author(s)    Bojidar Naydenov a.k.a Bojo ([e-mail]) & Antony Raijekov a.k.a Zeos ([e-mail])
 * @country		 Bulgaria
 * @version      2.1
 * @copyright    GPL
 * @access       public
 */
 
if (!defined("XOOPS_ROOT_PATH")) {
	exit();
}
include_once dirname(dirname(__FILE__))."/include/vars.php";
mod_loadFunctions("parse", $GLOBALS["artdirname"]);

art_parse_class('
class [CLASS_PREFIX]KeywordsHandler /*extends XoopsObjectHandler*/
{
    var $keywords;
	var $skip_tags = array("A", "IMG", "PRE", "QUOTE", "CODE",
							"H1", "H2", "H3", "H4", "H5", "H6" 
							);	//add here more, if you want to filter them

	function init()
	{
		$this->getKeywords();
		if(count($this->keywords)==0) return false;
		else return true;
	}

    function getKeywords()
    {
	    global $xoopsModuleConfig;
	    static $keywords=array();
		if(count($keywords)>0) return $keywords;
		$_keywords = art_parseLinks($xoopsModuleConfig["keywords"]);

		foreach($_keywords as $_keyword){
			$this->keywords[strtolower($_keyword["title"])] = $_keyword["url"];
		}
    }

	function highlighter($matches)
	{
		if (!in_array(strtoupper($matches[2]),$this->skip_tags))
		{
			$replace = "<a href=\"".$this->keywords[strtolower($matches[3])]."\">".$matches[3]."</a>";
			$proceed =  preg_replace("#\b(".$matches[3].")\b#si",$replace,$matches[0]);
		}
		else
		{
			$proceed = $matches[0];
		}
		return stripslashes($proceed);
	}

	function &process(&$text)
	{
		foreach($this->keywords as $keyword => $rep){
			$text = preg_replace_callback("#(<([A-Za-z]+)[^>]*[\>]*)*\s(".$keyword.")\s(.*?)(<\/\\2>)*#si",array(&$this, "highlighter"), $text);
		}
		return $text;
	}
}
');
?>