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A paging text-based PHP message board source code page 1/2_PHP tutorial

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WBOYOriginal
2016-07-21 15:56:271221browse

小弟初学PHP,编了一个留言板程序,自我感觉良好,故厚着脸皮放了上来,请各位大哥指正。源程序如下: 
//文件名:guest.php
//设定部分
$guestfile="guest";//纪录留言的文本文件
$home="index.html";//返回的主页
$imagedir="image"; //图像文件的目录
$backimage=$imagedir."/bk.gif";//背景图像
$backcolor="#ceffff";//背景颜色,在$backimage=""时起作用
?> 
 
 
if($QUERY_STRING!="") {
$page = $QUERY_STRING;
} else {
$page = 1;
}
if($mode=="add"){
$name=htmlspecialchars(trim($name));
$title=htmlspecialchars(trim($title));
$data=nl2br(htmlspecialchars($data));
$data=str_replace("r","",$data);
$data=str_replace("x0A","",$data);
$data=str_replace(" "," ",$data);
if($data=="") $data=" ";
$e_mail=trim($e_mail);
if($e_mail=="") $e_mail=0;
$url=trim($url);
if($url=="http://" || $url=="") $url=0;
$time=date("Y")."年".date("m")."月".date("d")."日[".date("H").":".date("i").":".date("s")."]";
if($name=="" || $title==""){
echo "n"; 
    exit; 
  } 
  $adddata=$name."t".$e_mail."t".$url."t".$title."t".$data."t".$icon."t".$time."n"; 
  if(file_exists($guestfile)){ 
    $filebuffer=file($guestfile); 
    if(sizeof($filebuffer)>100){ 
      for($i=0;$i<100;$i++)
$newbuffer[i]=$filebuffer[i];
}
else{
$newbuffer=$filebuffer;
}
$fp=fopen($guestfile,"w");
fputs($fp,$adddata);
fclose($fp);
$buffer=implode("",$newbuffer);
$fp=fopen($guestfile,"a");
fputs($fp,$buffer);
fclose($fp);
}
else{
$fp=fopen($guestfile,"w");
fwrite($fp,$adddata);
fclose($fp);
}
}
?> 
 
留言板 
 
 
if($backimage!="" && file_exists($backimage)){
echo "n"; 

else{ 
  echo "n"; 

?> 

 
   
     
   
 
 
      
供电9901网上空间留言板
 
    
">[返回首页]
 
 
 
   
  

姓名: 
     
    
 
    E_Mail: 
     
    
 
    主页: 
     
    
 
    留言标题: 
     
    
 
    留言内容:(不支持HTML)
 
     
   
    

表情:

 
    

 
       
      " width="15" height="15"> 
       
      " width="15" height="15"> 
       
      " width="15" height="15"> 
       
      " width="15" height="15"> 
       
      " width="15" height="15">

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/318062.htmlTechArticle小弟初学PHP,编了一个留言板程序,自我感觉良好,故厚着脸皮放了上来,请各位大哥指正。源程序如下: ?php //文件名:guest.php //设定部分...
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