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标题: 长文章截取 longText [打印本页]

作者: tznktg 时间: 2007-9-27 22:24
标题: 长文章截取 longText
<?php
/*****************************************************
* Copyright : www.phpyy.com
* FileName : long_text.inc.php
* Author    : 朱武杰 <phpyy@msn.com>
* NickName : 纯粹误会 QQ:44922032
* Version    : v1.0
* Description : 长文章截取 longText
* CreatDate : 2005-11-6
* HistoryEdit : 历史修改记录
---------- 第一次修改 -------------------
  Author : 朱武杰
  Date : 2005-11-8
  Summary :
-------------- ------------------------
---------- 第二次修改 -------------------
  Author : 朱武杰
  Date : 2005-11-11
  Summary : 加入XML输出
-------------- ------------------------

*****************************************************/
class longText{

/****
GB2312 0xB0 - 0xF7 0xA0 - 0xFE
GBK 0x81 - 0xFE 0x40 - 0xFE
GB18030 的双字节 0x81 - 0xFE 0x40 - 0x7E, 0x80 - 0xFE
GB18030 的四字节 0x81 - 0xFE 0x30 - 0x39 0x81 - 0xFE 0x30 - 0x39
***/
var $m_encoding ='gbk'; //encoding charset
var $m_text ='';    //content
var $m_size ='';    //char/page
var $m_mid ='';    //middle link number/page
var $m_page ='';    //currently page number
var $r_text ='';    //return content
var $r_author ='';    //return author
var $r_title ='';    //return title
var $r_prev ='';    //prev page link
var $r_next ='';    //next page link
var $r_first ='';    //first page link
var $r_last ='';    //last page link
var $r_midd ='';    //middle page link
var $r_html ='';    // return html code;
var $r_xml ='';    // return xml code;
//构造HTML风格代码并输出
function htmlConstruct(){
  $this-> explodeText();
  $this-> textPage ();
  $this-> htmlHttp();
  $this-> printHtmlCode ();
}
//构造XML风格代码并输出
function xmlConstruct (){
  $this-> explodeText();
  $this-> textPage ();
  $this-> xmlHttp ();
  $this-> printXmlCode ();
}
//连接HTML风格代码
function htmlHttp (){
  $this-> r_html=
$this->r_first
  .$this->r_prev
  .$this->r_midd
  .$this->r_next
  .$this->r_last
  ."<br/>\n"
  ."《".$this->r_title."》"
  ."\n"
  .$this->r_author
  ."<br/>"
  ."<br/>"
  .$this->r_text;
}
//连接XML风格代码
function xmlHttp (){
  $this->r_xml=''
  ."<code>"
  ."<title>".$this->r_title."</title>\n"
  ."<author>".$this->r_author."</author>\n"
  ."<fist>".$this->r_first."</fist>\n"
  ."<prev>".$this->r_prev."</prev>\n"
  ."<midd>".$this->r_midd."</midd>\n"
  ."<next>".$this->r_next."</next>\n"
  ."<last>".$this->r_last."</last>\n"
  ."<br/>"
  ."<text>".$this->r_text."</text>"
  ."</code>";
}
//输出HTML风格代码
function printHtmlCode (){
  echo $this->r_html;
}
//输出XML风格代码
function printXmlCode (){
  header('Content-type: text/xml');
  echo'<?xml version="1.0" encoding="GB2312"?>';
  echo $this->r_xml;
}
//构造类
function longText ($type='xml',$text,$size='200',$mid=5,$encoding='gbk',$title='',$author=''){
  if(!function_exists('mb_substr')){
die ('请添加mb（Multi-Byte String Functions）扩展');
  }
  $this->r_title =htmlspecialchars ($title);
  $this->r_author =htmlspecialchars ($author);
  $this->m_text =strip_tags($text);
  $this->m_text =str_replace(" "," ",$this->m_text);
  $this->m_text =str_replace("\r","",$this->m_text);
  $this->m_text =str_replace("\n\n","\n",$this->m_text);
  $this->m_size =$size+0;
  $this->m_mid    =$mid+0;
  $this->m_encoding =$encoding;
  $this->m_page =@$_GET['page']+0;
  $this->m_start =$this->m_page * $this->m_size;//start'th position in string
  $this->m_textLen =mb_strLen($this->m_text,$this->m_encoding);//the length of string
  $this->m_pages =floor($this->m_textLen/$this->m_size);//pages
  switch($type){
case 'html':
   $this->htmlConstruct();
      break;
case 'xml':
   $this->xmlConstruct();
      break;
default:
   $this-> explodeText();
   $this-> textPage ();
  }
}
//截取代码
function explodeText (){
  $this->r_text=nl2br( mb_substr($this->m_text ,$this->m_start,$this->m_size,$this->m_encoding) );
}
//分页
function textPage (){
  $this->r_prev =$this->m_page>0?" <a href=\"?page=".( $this->m_page-1)."\"><<</a> ":" << ";
  $this->r_next =$this->m_page<$this->m_pages ?" <a href=\"?page=".( $this->m_page+1)."\">>></a> ":" >> ";
  $this->r_first =$this->m_page>0?" <a href=\"?page=".(0)."\">|<<</a>":"|<<";
  $this->r_last =$this->m_page<$this->m_pages ?" <a href=\"?page=".( $this->m_pages )."\">>>|</a> ":">>| ";

  $begin=$this->m_page-ceil($this->m_mid/2);
  if($begin<0){
$begin=0;
  }
  $end=$this->m_page+$this->m_mid-ceil($this->m_mid/2);
  if($end>$this->m_pages){
$end=$this->m_pages;
  }
  for($i=$begin;$i<$end;$i++){
$this->r_midd.=$i==$this->m_page?" ".($i+1)." ":" <a href=\"?page=$i\">".($i+1)."</a> ";
  }
}
}

////////////// XML test (XML 测试) //////////////////////

///*
error_reporting(2047);

$filename="第一次亲密接触.txt";
$size=200;
$mid=5;
$text=file_Get_contents($filename);
$obj = new longText ('xml',$text,$size,$mid,'gbk','第一次亲密接触','痞子蔡');
//*/

////////////// HTML test (HTML 测试) //////////////////////

/*
error_reporting(2047);

$filename="第一次亲密接触.txt";
$size=200;
$mid=5;
$text=file_Get_contents($filename);
$r=array_sum(explode(" ",microtime()));
$obj = new longText ('html',$text,$size,$mid,'gbk','第一次亲密接触','痞子蔡');
$r=(array_sum(explode(" ",microtime()))-$r) ." 秒 ";
echo "<br/>".$r;
*/
?>

作者: tznktg 时间: 2007-9-27 22:24
<?php
//////////////////////////////////////////////////////////////////////////////////////////////////////////
//File:    main_news.php
//Author: TZNKTG
//Purpose:  This page is display news of new
///////////////////////////////////////////////////////////////////////////////////////////////////////////

$lastest_news_sql = "select id,sortid,bsortid,title,content,datetime from ".$article_table." order by id desc limit 0,1";
$db->execute($lastest_news_sql);
while($newsinfo=$db->reader())
{
$id = $newsinfo['id'];
$ssid = $newsinfo['sortid'];
$bsid = $newsinfo['bsortid'];
$title = $newsinfo['title'];
$content = $newsinfo['content'];
$datetime = $newsinfo['datetime'];
$dts = split(" ",$datetime);
$ydms = split("-",$dts[0]);
$newsydm = $ydms[0]."-".$ydms[1]."-".$ydms[2];
$ydm = $ydms[0]."年".$ydms[1]."月".$ydms[2]."日";

}
$par = "id=".$bsid."&ssid=".$ssid."&nid=".$id;
$content = str_replace(" "," ",cnsubstr($content,280));
$content = str_replace("\r\n\r\n","<br>",$content);
$content = str_replace("\r\n\n","<br>",$content);
$content = str_replace("\r\n","<br>",$content);
$content = str_replace("\\n","<br>",$content);
$content = str_replace("\n","<br>",$content);
?>
<table cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
  <tbody>
<tr>
<td width="5"><img width="5" border="0" height="5" src="images/main_top_left.gif" ></td>
<td width="100%" background="images/main_top_center.gif" height="5"></td>
<td width="5"><img width="5" border="0" height="5" src="images/main_top_right.gif" ></td>
   </tr>
</tbody>
</table>
<table class="main_bg" cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
  <tbody>
  <tr>
<td width="252">
   <table cellspacing="0" cellpadding="0" width="252" border="0">
      <tbody>
      <tr>
      <td colspan="3"><img height="10" src="images/pic01.gif" width="250"></td>
</tr>
      <tr>
      <td width="19"><img height="161" src="images/pic02.gif" width="15"></td>
      <td><a id="imagepart1_hlimg"  onclick="javascript:pictarget();return false;" href="javascript:void(null)"><img id="imagepart1_img" style="filter: revealtrans(duration=2.0,transition=12); " src="<? echo  $new_news_img ?>" height="150" width="218" border="0" name="img"> </a><img height="11" src="images/pic03.gif" width="218">
   </td>
      <td width="15"><img height=161 src="images/pic04.gif" width="19"></td>
   </tr>
      <tr>
      <td valign="top" align="middle" colspan="3"><a
         style="font-weight: bold; filter: dropshadow(color=#ffccff,offx=-1,offy=-1,positive=1); color: #0099ff; font-family: verdana,'宋体'; position: relative; height: 1px; text-decoration: none"
         href="javascript:void(null)"><span id="imagepart1_lbltitle"></span></a>
   </td>
   </tr>
</tbody>
</table>
</td>
<td valign="top">
<table height="190" cellspacing="0" cellpadding="0" width="100%" border="0">
<tbody>
<tr>
      <td height="20"> </td>
      </tr>
<tr>
   <td valign="top">
         <a href="shownews.php?<? echo $par ?>" title="<? echo $title."\n日期:".$ydm ?>"  target="_blank"><b><? echo $title?></b></a><span class="style1"> (<? echo $newsydm ?>)</span>
         <table cellspacing="0" cellpadding="0" width="100%" border="0">
            <tbody>
   <tr>
<td align="left" height="10"></td>
   </tr>
   <tr>
<td align="left" height="18" class="t18m"><? echo $content ?></td>
   </tr>
            </tbody>
</table>
   </td>
      <td width="5"></td>
   </tr>
   </tbody>
</table>
</td>
  </tr>
</tbody>
</table>
<table cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
  <tbody>
<tr>
<td width="5"><img width="5" border="0" height="5" src="images/main_bot_left.gif"></td>
<td width="100%" height="5" background="images/main_bot_center.gif"></td>
<td width="5"><img width="5" border="0" height="5" src="images/main_bot_right.gif"></td>
</tr>
  </tbody>
</table>

function cnsubstr($string,$sublen)
{
if($sublen>=strlen($string))
{
      return $string;
}
$s="";
for($i=0;$i<$sublen;$i++)
{
      if(ord($string{$i})>127)
      {
         $s.=$string{$i}.$string{++$i};
         continue;
      }else{
         $s.=$string{$i};
         continue;
      }
}
if(strlen($string)>$sublen) $s.="...";
return $s;
}

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