挑战最棒的留言本的源码(四)
config.php文件

<?php 
// 你的用户名和密码,以及数据库名,和表名,在这里一次定义!!!
// 由于怕用户名和密码被别人通过浏览器看到,所以用了php的扩展名,这样通过浏览就看不到了!!!.

     
$username='your_name';          //用户名
     
$password='your_password';          //密码

     
$hostname='localhost';              //主机名,一般都为localhost    

     
$db_name='your_db_name';           //数据库名
     
$table_name='your_liuyan_table';        //存放留言的表名 
       
     
$table_name_control='your_control_table';    //控制表名

     
$number_records_to_display=5;  //每页显示的留言条数!
     

     
$hang_zifu_number=50;  //换行的一行字符数!



// 连接数据库,在这里连好!!!

     
$id_link=@mysql_connect($hostname,$username,$password);
     if (! 
$id_link) {
        
affy_message("The connection to the local dtabase has failed.");}
  
// 处理参数,以后所有参数都可以通过 $arr_request['name']得到,不管是post的还是get的!!!

  
$arr_request=array();
  if (
count($HTTP_GET_VARS)) {
     while (list(
$key,$value)=each($HTTP_GET_VARS)) {
         
$arr_request[strtolower($key)]=$value;
     }
  }
  
  if (
count($HTTP_POST_VARS)) {
     while (list(
$key,$value)=each($HTTP_POST_VARS)) {
         
$arr_request[strtolower($key)]=$value;
     }
  }

// 一些出错处理函数!

  
function affy_footer() {
    echo 
'</body></html>';
  }

  function 
affy_header($title) {
    echo 
'<html><head><title>';
    echo 
"$title";
    echo 
'</title></head><body>';
  }

  function 
affy_message($msg) {
    echo 
'<table>';
    echo 
'<tr><td>';
    echo 
"$msg";
    echo 
'</td></tr>';
    echo 
'</table>';
  }

  function 
affy_error_exit($msg) {
      
$errno mysql_errno();
      
$error mysql_error();
      echo 
'<html><head><title>Error</title></head><body>';
      echo 
$msg;
      echo 
"<br>Error: ($errno) $error<br>";
      echo 
'</body></html>';
        exit();
  }

// 一些message处理函数!!!



//$test="2123.1.45.189";

function ip_question($msg)
{
//echo $msg;
//echo "<br>";
$ip=preg_split("/./",$msg);
$num=count($ip);
//echo $num;
$result="";
for(
$i=0;$i<$num-1;$i++)
$result=$result .$ip[$i].".";
  
//echo $ip[$i];
  //echo "<br>"; 
  
}
$result=$result ."XX";
return(
$result); 
}

//$result=ip_question($test);
//echo $result;



function add_blankto50($msg,$hang_zifu_number)
{
$num=strlen($msg);

$num_need=$hang_zifu_number-$num;
$str_suffix="";
for (
$i=0;$i<$num_need;$i++)
{
  
$str_suffix=$str_suffix." ";
 
}
//$num6=strlen($str_suffix);
//echo $num6;
//echo "<br>";

$pattern='/^(.*)/';
$replacement="\1$str_suffix";

$msg=preg_replace($pattern,$replacement,$msg);

return(
$msg);

}

function 
check_en_num($msg)
{
$pattern='/[x00-x7f]/';

preg_match_all($pattern,$msg,$matches);

$num2=count($matches[0]);

return(
$num2%2);

}

function 
short_one($msg)
{
$pattern='/.$/';
$replacement='';
$result=preg_replace($pattern,$replacement,$msg);

return(
$result);




}

function 
pian_question($msg)
{
 
$pattern="/'/";
 
$replacement="'";
 
$temp=preg_replace($pattern,$replacement,$msg);
 
 
$pattern="/\'/";
 
$replacement="'";
 
$result=preg_replace($pattern,$replacement,$temp);

 return(
$result);   
 
}

function 
check_last($msg)
  {

$pattern='/.$/';

preg_match($pattern,$msg,$match);


if (
$match[0]>'~')
  return(
1);
else 
  return(
0); // echo "英文";


}

//$num5=short_one($test);
//echo $num5;




function computer_message($msg,$hang_zifu_number)
{
$msg=pian_question($msg);

$arr_phone=preg_split("/n/",$msg);


$num=count($arr_phone);
//echo $num;
//echo "<br>";
//$num2=strlen($arr_phone[0]);
//echo $num2;
$first_line=1;

for (
$i=0;$i<$num;$i++)
{
   while(
$str_num=strlen($arr_phone[$i])>$hang_zifu_number)
      {
 
         
$first_line=0;
         
$workstr=$arr_phone[$i];
         
         

         
$pattern_pre50="/.{".$hang_zifu_number ."}/";

         
preg_match_all($pattern_pre50,$workstr,$matches);
         
$temp=$matches[0][0];
        
         if ((
check_last($temp)==1)and(check_en_num($temp)==1))  //  ji shu and chinese
            
{      
                   
$hang_zifu_shortone=$hang_zifu_number-1;
                     
                   
$pattern_replace="/^.{".$hang_zifu_shortone ."}/";

                   
$replacement='';
                   
$arr_phone[$i]=preg_replace($pattern_replace,$replacement,$workstr);
                       
// 前面49个处理完!
     
                   
$temp=short_one($temp);  //从50个中减去一个.

             

              

                      
        
         else  
            {

              
$pattern_replace="/^.{".$hang_zifu_number ."}/";

              
$replacement='';
              
$arr_phone[$i]=preg_replace($pattern_replace,$replacement,$workstr);
        
            } 
                  
 
         
$message=$message $temp."<br>";

      }
  
   if ((
$first_line==1)and(strlen($arr_phone[$i])<$hang_zifu_number))
     {
      
       
$first_line=0;
       
$temp_addblank=$arr_phone[$i];

       
$temp_addblank=add_blankto50($temp_addblank,$hang_zifu_number);
    
       
$message=$temp_addblank ."<br>";

     }

   else

       
$message=$message .$arr_phone[$i]."<br>";


}
return(
$message);


}

//$num1=strlen($test);
//echo $num1;
//echo $test;

//echo "<br>";
//$mes=add_blankto50($test);
//$num9=strlen($mes);
//echo $num9;
//$result=ip_question($test);
//computer_message($test);
//echo $result;


function checkpass($passwd,$action,$db_name,$table_name_control,$id_link)
    {
     
     

     if (
$action="delete")
        
$str_sql="select value from $table_name_control where leibie='delete';";
     else if (
$action="huifu")
        
$str_sql="select value from $table_name_control where leibie='huifu';";
     else 
        echo 
"error";
      


     
$result=mysql_db_query($db_name,$str_sql,$id_link);
     
     if (! 
$result) {
            
affy_error_exit('SQL Execution has failed.');}


     
$recordmysql_fetch_object($result);
    
// echo $record->value;
    // echo "<br>";
    // echo $passwd;
    // echo "<br>";
     
if ($record->value==$passwd)
        return(
1);
     else
        return(
0);   



   }

//$msg=computer_message($test,$hang_zifu_number);

//echo $msg;

?>