articletools.php

非常简单的一个文本Blog

<?php
	//-------------------------------------------------------------------------
	//  程序名称：神之居所　V1.0
	//　作者：竹一木
	//  时间：2007-09-22
	//  demo: http://god.512j.com
	//　Email：[e-mail]
	//  Thanks: keep this information if possible.
	//-------------------------------------------------------------------------
	
	// string iconv(string in_charset, string out_charset, string str)
	// 编码转换
	function gbk2utf($text)
	{
		return iconv('gbk', 'utf-8', $text);
	}
	
	function utf2gbk($text)
	{
		return iconv('utf-8', 'gbk', $text);
	}
	
	//处理大于小于号
	function html2text($text)
	{
		$text = str_replace("\r\n\r\n", "\r\n", $text);
		$text = str_replace("\r\n", "[br]", $text);
		
		if(substr($text, 0, 4) == "[br]")
	    	$text = substr($text, 4);
	    $Len = strlen($text);
	    if(substr($text, $Len - 4, 4) == "[br]")
	    	$text = substr($text, 0, $Len - 4);
		
		$text = htmlspecialchars($text);
		
		return $text;
	}
	
	function content2html($content)
	{
		// [img]http://god.512j.com/images/head1.gif[/img]
		// <img src='http://god.512j.com/images/head1.gif' class='godimage'>
		$TextLines = explode("[br]", $content);
		$LineNum = count($TextLines);
		for($i=0; $i < $LineNum; $i ++)
		{
			if(substr($TextLines[$i], 0, 2) == "　" || substr($TextLines[$i], 0, 1) == " ")
				$text .= "<p>".$TextLines[$i]."</p>";
			else
				$text .= "<p>　　".$TextLines[$i]."</p>";
		}
		
		$text = str_replace("[img]", "<img src='", $text);
		$text = str_replace("[/img]", "' class='godimage'>", $text);

		return $text;
	}
	
	function text2html($text)
	{
		return $text;
	}
	
	// 获取XML文件中的文章数
	function getArticleNum($file_name)
	{
		$doc = new DOMDocument();
		$doc->load($file_name);
		$id_space = $doc->getElementsByTagName("id"); 
		return $id_space->length;
	}
	
	// 设置文章页码
	function getPageIndexString($file_name, $gid, $page_index, $index_span)
	{
		$article_num = getArticleNum($file_name);
		$max_index = ($article_num % $index_span) > 0 ? ((int)($article_num / $index_span)) + 1 : (int)($article_num / $index_span);
		
		if ($page_index != 1)
        {
            $page_url_first = "<a href='index.php?gid=".$gid."&pageindex=1' title='首页'>|<</a>";
        }

        if ($page_index > 1)
        {
        	$temp_index = $page_index - 1;
            $page_url_former = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."' title='前一页'><<</a>";
        }

        $base_num = -1;
        if ($page_index % 5 == 0)
        {
            $base_num = $page_index - 4;
        }
        else
        {
            $base_num = $page_index - ($page_index % 5) + 1;
        }

        if ($base_num <= $max_index)
        {
            if ($page_index == $base_num)
            {
                $page_url_one = "<Font color=red>".$base_num."</Font>";
            }
            else
            {
                $page_url_one = "<a href='index.php?gid=".$gid."&pageindex=".$base_num."'>".$base_num."</a>";
            }
        }

        if ($base_num + 1 <= $max_index)
        {
        	$temp_index = $base_num + 1;
            if ($page_index == $temp_index)
            {
                $page_url_one = "<Font color=red>".$temp_index."</Font>";
            }
            else
            {
                $page_url_one = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."'>".$temp_index."</a>";
            }
        }

        if ($base_num + 2 <= $max_index)
        {
            $temp_index = $base_num + 2;
            if ($page_index == $temp_index)
            {
                $page_url_one = "<Font color=red>".$temp_index."</Font>";
            }
            else
            {
                $page_url_one = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."'>".$temp_index."</a>";
            }
        }

        if ($base_num + 3 <= $max_index)
        {
            $temp_index = $base_num + 3;
            if ($page_index == $temp_index)
            {
                $page_url_one = "<Font color=red>".$temp_index."</Font>";
            }
            else
            {
                $page_url_one = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."'>".$temp_index."</a>";
            }
        }

        if ($base_num + 4 <= $max_index)
        {
            $temp_index = $base_num + 4;
            if ($page_index == $temp_index)
            {
                $page_url_one = "<Font color=red>".$temp_index."</Font>";
            }
            else
            {
                $page_url_one = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."'>".$temp_index."</a>";
            }
        }


        if ($page_index < $max_index)
        {
        	$temp_index = $page_index + 1;
            $page_url_next = "<a href='index.php?gid=".$gid."&pageindex=".$temp_index."' title ='下一页'>>></a>";
        }

        if ($page_index != $max_index)
        {
            $page_url_end = "<a href='index.php?gid=".$gid."&pageindex=".$max_index."' title='最后一页'>>|</a>";
        }
        
        $page_index_string = $page_url_first." ".$page_url_former." ".$page_url_one." ".$page_url_two." ".$page_url_three;
        $page_index_string .= " ".$page_url_four." ".$page_url_five." ".$page_url_next." ".$page_url_end;
        return $page_index_string;
	}
		
	// ------------------以上为添加文章用到的类或函数--------------------	
	// 获取当前最大文章ID值，以便+1当做新文章ID
	function getMaxID($file_name)
	{
		$xmlReader = new XMLReader();
		$xmlReader->open($file_name);
		$xmlReader->read(); // Skip root node
		
		$flag = "";
		$id = array();
	
	 	while ($xmlReader->read())
	 	{
			switch($xmlReader->nodeType)
			{
				case XMLReader::ELEMENT:
					$flag = $xmlReader->name;
	   				break;
	   				
				case XMLReader::TEXT:
					if ($flag == "id")
	 				{
	 					array_push($id, utf2gbk($xmlReader->value));
	 					$flag = "";
	 				}
					break;
			}
	 	}
	 	$xmlReader->close();
	 	return $id[count($id)-1];
	}
		
	// 添加文章类
	class GodDocument extends DomDocument 
	{ 
    	function __construct() 
    	{ 
	        //必须调用! 
	        parent::__construct("1.0", "gbk");
	        $this->preserveWhiteSpace = FALSE; 
			$this->formatOutput =true;
    	}
     
    	function addArticle($id, $name, $create_time, $title, $content)
    	{
	        $article_space = $this->createElement("article");
	        
	        // id
	        $id_space = $this->createElement("id");
	        $id_text = $this->createTextNode(gbk2utf($id));
	        $id_space->appendChild($id_text);
	        
	        // 作者
	        $name_space = $this->createElement("name");
	        $name_text = $this->createTextNode(gbk2utf($name));
	        $name_space->appendChild($name_text);
	        
	        // 时间
	        $time_space = $this->createElement("time");
	        $time_text = $this->createTextNode(gbk2utf($create_time));
	        $time_space->appendChild($time_text);
	        
	        // 标题
			$title_space = $this->createElement("title"); 
	        $title_text = $this->createTextNode(gbk2utf($title)); 
	        $title_space->appendChild($title_text);
	        
	        // 内容
	        $content_space = $this->createElement("content");
	        $content_text = $this->createTextNode(gbk2utf($content));
	        $content_space->appendChild($content_text);
	        
	        $article_space->appendChild($id_space);
	        $article_space->appendChild($name_space);
	        $article_space->appendChild($time_space);
	        $article_space->appendChild($title_space);
			$article_space->appendChild($content_space);
	        
	        $this->documentElement->appendChild($article_space); 
    	}
    	
    	function createNewDataFile($file_name)
    	{
			// we want a nice output
			$this->formatOutput = true;
			$root = $this->createElement('articles');
			$this->appendChild($root);
			$this->save($file_name);
    	}
	}
	// ------------------以上为添加文章用到的类或函数--------------------
	
	// ------------------以下为读取文章用到函数--------------------
	function isKey($name)
	{
		if ($name == "name" || $name == "title" || $name == "id"
			|| $name == "time" || $name == "content")
		{
			return true;
		}
		return false;
	}

	function readArticle($file_name, $page_index, $index_span)
	{
		$output = "";
		 
		if (!file_exists($file_name))
		{
			$output .= "<tr bgcolor=green><td><b>".此版块还没有任何内容."</b></td></tr>";
			$output .= "<tr bgcolor=#CCCCCC><td><br>There is nothing now.";
			$output .= "</td></tr><tr bgcolor=#555555><td>&nbsp;</td></tr>";
			echo $output;
			return;
		}
		 
		$xmlReader = new XMLReader();
		$xmlReader->open($file_name);
		$xmlReader->read(); // Skip root node
		
		$flag = "";
		
		$id = array();
		$name = array();
		$time = array();
		$title = array();
		$content = array();
	
	 	/* Go through the nodes */
	 	while ($xmlReader->read())
	 	{
	  		/* We're only parsing begin and #text nodes right now */
			if($xmlReader->nodeType != XMLReader::END_ELEMENT && $xmlReader->name != "article")
			{
	   			switch($xmlReader->nodeType)
	   			{
	   				case XMLReader::ELEMENT:
	   					$flag = $xmlReader->name;
		   				break;
		   				
	   				case XMLReader::TEXT:
	   					if ($flag != "" && isKey($flag))
	     				{
	     					array_push($$flag, utf2gbk($xmlReader->value));
	     					$flag = "";
	     				}
	   					break;
	   			}
			}
	 	}
	 	$xmlReader->close();
	 	
	 	$is_god = isGod();
	 	$index = 0;
	 	for($i= count($name)-1; $i >= 0; $i--)
	 	{
	 		$index++;
	 		if ($index <= ($page_index-1) * $index_span)
	 		{
	 			continue;
	 		}
	 		
	 		if ($index > $page_index * $index_span)
	 		{
	 			break;
	 		}
	 		
	 		$block_id = 1;
	 		if ($_REQUEST["gid"] != NULL)
	 		{
	 			$block_id = $_REQUEST["gid"];
	 		}
	 		
	 		if ($is_god)
	 		{
	 			$output .= "<tr bgcolor=green><td><b>".text2html($title[$i])."</b></td>";
	 			$output .= "<td align=right width=45>";
		 		$output .= "<a href='delete_article.php?gid=".$block_id."&id=".$id[$i];
		 		$output .= "' onclick='return confirmOK()'>删除</a></td>";
		 		$output .= "<td align=right width=45>";
		 		$output .= "<a href='edit_article.php?gid=".$block_id."&id=".$id[$i]."'>编辑</a></td></tr>";
		 		$output .= "<tr bgcolor=#CCCCCC><td colspan=3><br>".content2html($content[$i])."<br>";
		 		$output .= "<p align=right>".text2html($name[$i])." 发表于 ".text2html($time[$i])."</p></td></tr>";
		 		$output .= "<tr bgcolor=#555555><td colspan=3>&nbsp;</td></tr>";
	 		}
	 		else
	 		{
	 			$output .= "<tr bgcolor=green><td><b>".text2html($title[$i])."</b></td></tr>";
		 		$output .= "<tr bgcolor=#CCCCCC><td><br>".content2html($content[$i])."<br>";
		 		$output .= "<p align=right>".text2html($name[$i])." 发表于 ".text2html($time[$i])."</p></td></tr>";
		 		$output .= "<tr bgcolor=#555555><td>&nbsp;</td></tr>";
	 		}
	 		
	 		echo $output;
	 		$output = "";
	 	}
	}
	// ------------------以上为读取文章用到函数--------------------
	
	// ------------------以下是编辑或删除文章用到的函数-----------------------
	// 删除一个文章
	function deleteArticle($file_name, $id)
	{
		$doc = new DOMDocument();
		$doc->load($file_name);
		
		$id_space = $doc->getElementsByTagName("id"); 
		foreach($id_space as $node)
		{
			if ($node->textContent == $id)
			{
				$node->parentNode->parentNode->removeChild($node->parentNode);
			}
		}
		$doc->save($file_name);
	}
	
	// 编辑更新一个文章
	function updateArticle($file_name, $id, $name, $title, $content)
	{
		$doc = new DOMDocument();
		$doc->load($file_name);
		
		$node_list = NULL;
		
		$id_space = $doc->getElementsByTagName("id"); 
		foreach($id_space as $node)
		{
			if ($node->textContent == $id)
			{
				$node_list = $node->parentNode->childNodes;
			}
		}
		
		foreach ($node_list as $n)
		{
			if ($n->nodeName == "name")
			{
				$n->nodeValue = gbk2utf($name);
			}
			else if ($n->nodeName == "title")
			{
				$n->nodeValue = gbk2utf($title);
			}
			else if ($n->nodeName == "content")
			{
				$n->nodeValue = gbk2utf($content);
			}
		}
		
		$doc->save($file_name);
	}
	
	// 编辑之前把要编辑的文章加载上来
	function loadArticle($file_name, $id)
	{
		$doc = new DOMDocument();
		$doc->load($file_name);
		
		$node_list = NULL;
		$id_space = $doc->getElementsByTagName("id"); 
		foreach($id_space as $node)
		{
			if ($node->textContent == $id)
			{
				$node_list = $node->parentNode->childNodes;
			}
		}
		
		$result = array();
		
		foreach ($node_list as $n)
		{
			if ($n->nodeName == "name")
			{
				$result["name"] = utf2gbk($n->nodeValue);
			}
			else if ($n->nodeName == "title")
			{
				$result["title"] = utf2gbk($n->nodeValue);
			}
			else if ($n->nodeName == "content")
			{
				$result["content"] = utf2gbk($n->nodeValue);
			}
		}
		
		return $result;
	}
	// -----------------------以上是编辑或删除文章用到的函数----------------------------
?>