挑战最棒的留言本的源码（五）

来源：Linuxdby.com 作者：Webmaster 时间：2007-06-01 点击： [收藏] [投稿]

<html>
<title>留言本</title>
<body bgcolor=white>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">


</style>
</head>
<h1><center><font color="green" size=7>留言信息</font></center></h1>

<?php
      require('config.php');
?>

<?php

$initial_record=0;
$sort_field='key_liuyan';
$sort_direction='DESC';

if (strlen($arr_request['initial_record']))
   {
     $initial_record=$arr_request['initial_record'];
     $sort_field=$arr_request['sort_field'];
     $sort_direction=$arr_request['sort_direction'];

   }

$str_sql_all="select count(*) as number_of_records from $table_name ";

$result=mysql_db_query($db_name,$str_sql_all,$id_link);

if (!result)
   { affy_error_exit('SQL select execution has failed.');}

$record=@mysql_fetch_object($result);

$number_of_records=$record->number_of_records;

if (strlen($sort_field)==0)
  {
    $str_sql="select * from $table_name
              limit $initial_record,$number_records_to_display ";

  }

else
{

   $str_sql="select * from $table_name order by $sort_field $sort_direction
             limit $initial_record,$number_records_to_display ";
}

$result=mysql_db_query($db_name,$str_sql,$id_link);

if (!$result)
   { affy_error_exit('SQL select execution has failed.');}

$number_of_records_on_current_page=@mysql_num_rows($result);

if ($number_of_records<1)
  {  echo '<p>表中没有数据!<p>';}
else
  {
    $next_index=$initial_record+$number_records_to_display;

    if ($next_index>$number_of_records)
         $next_index=$number_of_records;



    $prev_index=$initial_record-$number_records_to_display;

    if ($prev_index<0)
       {
          $prev_index=0;
       }


  }

echo "<center>";
echo "<table border=0><tr bgcolor=#f1f1f1><td width=24% align=left>";

if ($initial_record!=0)
   {
     $t1="initial_record=$prev_index";
     $sort="sort_field=$sort_field";
     $asc="sort_direction=$sort_direction";
     echo "<a href="$PHP_SELF?$asc&$sort&$t1 ">";
     echo "<<前 $number_records_to_display 条留言</a>";

   }

else
  {
     echo "|前面没有留言了";

  }

echo "</td><td width=52% align=center>";

    $t2=$initial_record+1;

    echo "本页显示第 <font color=green>$t2</font> 到 <font color=green>$next_index</font>
条留言,共<font color=blue>$number_of_records</font>条留言";

echo "</td><td width=24% align=right>";

if ($next_index!=$number_of_records)

  {
     $t1="initial_record=$next_index";

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