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Challenge the best guestbook source code (4)_PHP tutorial

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WBOYOriginal
2016-07-21 16:03:51900browse

config.php file

// Your username and password, as well as database name, and table name, are defined here at once!!!
// Because of fear of username and password It was seen by others through the browser, so I used the php extension so that it can’t be seen through browsing!!!.

$username='your_name'; //Username
$password= 'your_password';                                                                                                                 $hostname=' 🎜> $ table_name='your_liuyan_table'; //The name of the table where messages are stored

$table_name_control='your_control_table'; //The name of the control table

$number_records_to_display=5; //The message strip displayed on each page Count!


$hang_zifu_number=50; //The number of characters in a new line!



// Connect to the database, connect here!!!

$id_link=@mysql_connect($hostname,$username,$password);
if (! $id_link) {
affy_message("The connection to the local dtabase has failed.");}

// Processing parameters, all parameters in the future can be obtained through $arr_request['name'], whether it is post or get!!!

$arr_request=array();
if (count($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;
}
}

// Some error handling functions!

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

function affy_header($title) {
echo ''; <br> echo "$title" ; <br> echo '';
}

function affy_message($msg) {
echo '

';
echo '';
echo ' }

function affy_error_exit($msg) {
$errno = mysql_errno();
$error = mysql_error();
echo '< ;head>Error'; ";
echo '';
exit();
}

// Some message processing functions!!!



//$test="2123.1.45.189";

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

}
$result=$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 "
";

$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 $num;
//echo "
";
//$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."
";

      }

   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 ."
";

     }

   else

       $message=$message .$arr_phone[$i]."
";


}
return($message);


}

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

//echo "
";
//$mes=add_blankto50($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.');}


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



   }

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

//echo $msg;

?>


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';
echo "$msg";
echo '