PHP中UTF8中文字符截断程序代码

function substrs($content, $length){
 if($length && strlen($content)>$length){
  if($db_charset!='utf-8'){
   $retstr='';
   for($i = 0; $i < $length - 2; $i++) {
    $retstr .= ord($content[$i]) > 127 ? $content[$i].$content[++$i] : $content[$i];
   }
   return $retstr;
  }else{
   return utf8_trim(substr($content,0,$length*3));
  }
 }
 return $content;
}

function utf8_trim($str) {
 $len = strlen($str);
 for($i=strlen($str)-1;$i>=0;$i-=1){
  $hex .= ' '.ord($str[$i]);
  $ch   = ord($str[$i]);
  if(($ch & 128)==0) return substr($str,0,$i);
  if(($ch & 192)==192)return substr($str,0,$i);
 }
 return($str.$hex);
}

<?

//function.php  这里是主函数
function php_page($page_dbname,$page_size,$page)
{
if ($page=="")
 {$page=1;};
if ($ljjl=="")
 {$ljjl=0;};
if($page)
  {
    //$page_dbname="tb_insert";
 //$page_size=4;          //每页显示4条记录
    $query="select count(*) as total from ".$page_dbname;  //从数据库中读取数据
 $result=mysql_query($query);
    $message_count=mysql_result($result,0,"total");  //获取总的记录数
    $page_count=ceil($message_count/$page_size);  //获取总的页数
    $offset=($page-1)*$page_size;  
    $query="select * from ".$page_dbname." order by id desc limit $offset, $page_size";  
 $result=mysql_query($query);
//内容显示 这里只是简单的作个示范，可以按你的要求随便改动。
 while ($myrow=@mysql_fetch_array($result))
 {
  echo $myrow[name]." | ".$myrow[number]." | ".$myrow[tel]." | ".$myrow[address]."<br><br>";
  }
 
}
 echo "页次：".$page."/";
 echo $page_count."页 记录：";
 echo $message_count."条"."<br>";

  if($page!=1)
   {
    echo  "<a href=index.php?page=1>首页</a>&nbsp;";
       echo "<a href=index.php?page=".($page-1).">上一页</a>&nbsp;";
    }
  else
   {
    echo  "首页&nbsp;";
       echo "上一页&nbsp;";  
   }
 
  for($i=1; $i<=$page_count; $i++)
  {
   if ($page==$i)
    {echo  $i."&nbsp;";}
    else
       {echo  "<a href=index.php?page=$i>$i</a>&nbsp;";}
   }
 
  if($page<$page_count)
   {
    echo "<a href=index.php?page=".($page+1).">下一页</a>&nbsp;";
    echo  "<a href=index.php?page=".$page_count.">尾页</a>";
   }
  else
   {
    echo "下一页&nbsp;";
    echo  "尾页";
   }
}
?>

<?php

$id=mysql_connect("localhost","root","root")or dir('连接失败:' . mysql_error());
//mysql_connect("IP","用户名","密码")

if(mysql_select_db("db_database06",$id))
echo "";
else
echo ('连接失败:' . mysql_error());
mysql_query("set names gb2312");
?>

 <?php

require_once("conn.php");
require_once("function.php");
php_page("tb_insert",3,$_GET[page]); // "tb_insert"是表名,3是在每页要显示的记录数,$_GET[page]是page的id,直接用就可以了。
?> 

--> 1 //获取当前页数
         if(isset($_GET['page'])){
             $page = intval($_GET['page']);
         }
         else {
             $page=1;
         }
         $PageSize = 1; //每页的记录数量
         // 获取总数量
         $sql = "select count(*) from blog";
         $result = mysql_query($sql);
         $row = mysql_fetch_row($result);
         $amount = $row[0];
         /*计算总页数
         if($amount){
             if($amount<$PageSize) { //如果总数量小于每页的记录数量$PageSize，那么只有一页.
                 $PageCount = 1;
             }
             if($amount%$PageSize) { //总数量除以每页的记录数量取于
                 $PageCount =& amp;nbsp;(int)($amount/$PageSize)+1;//如果有于，则页数等于总数量除每页的记录数加1
             }
             else{
                 $PageCount =& amp;nbsp;$amount/$PageSize;//没有，则结果是页数
             }
         }
         else{
             $PageCount = 0;
         }*/
         $PageCount = ceil($amount/$PageSize);//总页数=总数量除以每页数量  如果有小树，则进位< span style="color: #008000;">
         if($Page>$PageCount|$page==0){// 如果当前页数大于总页数
             echo "不能发现此页！";
             exit();
         }
      
         //翻页链接
         $PageOut = '';
         if($page==1){//如果页数只有一页
             $PageOut .= '第一页|上一页';
         }
         else{
             $PageOut .= '<a href="index.php?page=1">第一页& lt;/a>|<a href="index.php?page='.($page-1).'">上一页</a>|';
         }
         if($page==$PageCount||$PageCount==0){//如果当前页等于总也数
             $PageOut .= '下一页|尾页';
         }
         else{
             $PageOut .=  '<a href="index.php?page='.($page+1).'">下一页</a>|<a href="index.php?page='.$PageCount.'">尾页</a>';
         }
         //获取数据
         if($amount){
         $sql="select * from blog limit ".($page-1)*($PageSize).",$PageSize";
         $result=mysql_query($sql);
         while($row=mysql_fetch_array($result)){//此段代码只是示例
             $blogs[] = array('bid'=>$row['bid'],'title'=>$row['title']);
             foreach ($blogs as $blog){
             $title=$blog['title'];
             }
             $output = "<a href=index.php?action=blog_del&bid=$blog[bid]>删除</a>".
             "<a href=index.php?action=blog_edit&bid=$blog[bid]>编辑</a>".
             "<a href=index.php?action=blog_view&bid=$blog[bid]>查看</a>";
             include("template/default/blog.tpl.php");
             echo $PageOut;
         }
         for($i=1;$i<=$PageCount;$i++){//数字分页
            $Pageshow = ($i!=$page)?"<a href='index.php?page=".$i."'>$i</a>":"<b>$i</b>";
            echo $PageShow;
          }
          echo $amount.'条记录，每页'.$PageSize.'条，共'.$PageCount.'页';
         }

function funcMtel($str)//手机号码正则表达试
{
 return (preg_match("/(?:13d{1}|15[03689])d{8}$/",$str))?true:false;
}

function funcMtel($str)//手机号码正则表达试
{
 return (preg_match("/(?:1[3|4|5|8]d{1}|15[03689])d{8}$/",$str))?true:false;
}

<?php
$string = "some text (a(b(c)d)e) more text";
if(preg_match("/(([^()]+|(?R))*)/",$string,$matches))
{
    echo "<pre>"; print_r($matches); echo "</pre>";
}
?>
其输出结果是:

 Array
(
    [0] => (a(b(c)d)e)
    [1] => e   
)

"/(([^()]+|(([^()]+|(([^()]+)*))*))*)/"

"/(([^()]+|(?R))*)/"

 <?php
    $string = "some text (a(b(c)d)e) more text";
    if(preg_match("/((?:[^()]+|(?R))*)/",$string,$matches))
    {
        echo "<pre>"; print_r($matches); echo "</pre>";
    }
?>
产生的结果相同:

 Array
    (
     [0] => (a(b(c)d)e)
    )

$post_data = array();
$post_data['clientname'] = "test08";
$post_data['clientpasswd'] = "test08";
$post_data['submit'] = "submit";
$url='http://xxx.xxx.xxx.xx/xx/xxx/top.php';
$o="";
foreach ($post_data as $k=>$v)
{
    $o.= "$k=".urlencode($v)."&";
}
$post_data=substr($o,0,-1);
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_URL,$url);
//为了支持cookie
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$result = curl_exec($ch);