PHP的栏目导航程序

?php$d_label=array(service=有偿服务,teach=家教中央,union=学校服务结盟,job=学子全职,free=消息库卡塔尔(قطر‎;$directory=$REQUEST_URI;while($directory!=/){$d_text=basename($directory);if(isset($d_label[$d_text])){$d_text=$d_label[$d_text];}$d_link=$directory;$d_curx=-a
href=/$d_link/$d_text/a;$d_komplettx=$d_curx.$d_komplettx;$directory=dirname($directory卡塔尔国;}echo
栏目导航:.$d_komplettx;?

*/

 代码如下

$link = @mysql_connect($db_host,$db_user,$db_pass) or die(‘unable to
establish a db connection’);

mysql_query(“set names ‘utf8′”);
mysql_select_db($db_database,$link);

class comment
{
 private $data = array();
 
 public function __construct($row)
 {
  /*
  / the constructor
  */
  
  $this->data = $row;
 }
 
 public function markup()
 {
澳门新葡萄京官网首页 ,  /*
  / this method outputs the xhtml markup of the comment
  */
  
  // setting up an alias, so we don’t have to write $this->data every
time:
  $d = &$this->data;
  
  $link_open = ”;
  $link_close = ”;
  
  if($d[‘url’]){
   
   // if the person has entered a url when adding a comment,
   // define opening and closing hyperlink tags
   
   $link_open = ‘<a href=”‘.$d[‘url’].'”>’;
   $link_close =  ‘</a>’;
  }
  
  // converting the time to a unix timestamp:
  $d[‘dt’] = strtotime($d[‘dt’]);
  
  // needed for the default gravatar image:
  $url =
”;
  
  return ‘
  
   <div class=”comment”>
    <div class=”avatar”>
     ‘.$link_open.’
     <img
src=”).'”
/>
     ‘.$link_close.’
    </div>
    
    <div
class=”name”>’.$link_open.$d[‘name’].$link_close.'</div>
    <div class=”date” title=”added at ‘.date(‘h:i on d m
y’,$d[‘dt’]).'”>’.date(‘d m y’,$d[‘dt’]).'</div>
    <p>’.$d[‘body’].'</p>
   </div>
  ‘;
 }
 
 public static function validate(&$arr)
 {
  /*
  / this method is used to validate the data sent via ajax.
  /
  / it return true/false depending on whether the data is valid, and
populates
  / the $arr array passed as a paremter (notice the ampersand above)
with
  / either the valid input data, or the error messages.
  */
  
  $errors = array();
  $data = array();
  
  // using the filter_input function introduced in php 5.2.0
  
  if(!($data[’email’] =
filter_input(input_post,’email’,filter_validate_email)))
  {
   $errors[’email’] = ‘please enter a valid email.’;
  }
  
  if(!($data[‘url’] =
filter_input(input_post,’url’,filter_validate_url)))
  {
   // if the url field was not populated with a valid url,
   // act as if no url was entered at all:
   
   $url = ”;
  }
  
  // using the filter with a custom callback function:
  
  if(!($data[‘body’] =
filter_input(input_post,’body’,filter_callback,array(‘options’=>’comment::validate_text’))))
  {
   $errors[‘body’] = ‘please enter a comment body.’;
  }
  
  if(!($data[‘name’] =
filter_input(input_post,’name’,filter_callback,array(‘options’=>’comment::validate_text’))))
  {
   $errors[‘name’] = ‘please enter a name.’;
  }
  
  if(!empty($errors)){
   
   // if there are errors, copy the $errors array to $arr:
   
   $arr = $errors;
   return false;
  }
  
  // if the data is valid, sanitize all the data and copy it to $arr:
  
  foreach($data as $k=>$v){
   $arr[$k] = mysql_real_escape_string($v);
  }
  
  // ensure that the email is lower case:
  
  $arr[’email’] = strtolower(trim($arr[’email’]));
  
  return true;
  
 }

 private static function validate_text($str)
 {
  /*
  / this method is used internally as a filter_callback
  */
  
  if(mb_strlen($str,’utf8′)<1)
   return false;
  
  // encode all html special characters (<, >, “, & .. etc) and
convert
  // the new line characters to <br> tags:
  
  $str = nl2br(htmlspecialchars($str));
  
  // remove the new line characters that are left
  $str = str_replace(array(chr(10),chr(13)),”,$str);
  
  return $str;
 }

}

$comments = array();
$result = mysql_query(“select * from comments order by id asc”);

while($row = mysql_fetch_assoc($result))
{
 $comments[] = new comment($row);
}

?>

<!doctype html public “-//w3c//dtd xhtml 1.0 strict//en”
“;
<html xmlns=”;
<head>
<meta http-equiv=”content-type” content=”text/html; charset=gb2312″
/>
<title>simple ajax commenting system | tutorialzine
demo</title>

<link rel=”stylesheet”
type=”text/css教程”
href=”styles.css” />

</head>

<body>

 

<div id=”main”>

<?php

/*
/ output the comments one by one:
*/

foreach($comments as $c){
 echo $c->markup();
}

?>

<div id=”addcommentcontainer”>
 <p>add a comment</p>
 <form id=”addcommentform” method=”post” action=””>
     <div>
         <label for=”name”>your name</label>
         <input type=”text” name=”name” id=”name” />
           
            <label for=”email”>your email</label>
            <input type=”text” name=”email” id=”email” />
           
            <label for=”url”>website (not
required)</label>
            <input type=”text” name=”url” id=”url” />
           
            <label for=”body”>comment body</label>
            <textarea name=”body” id=”body” cols=”20″
rows=”5″></textarea>
           
            <input type=”submit” id=”submit” value=”submit” />
        </div>
    </form>
</div>

</div>

<script type=”text/网页特效”
src=”;
<script type=”text/javascript” src=”script.js”></script>

</body>
</html>

数据库教程结构

 代码如下

— table structure for table `comments`

create table `comments` (
  `id` int(10) unsigned not null auto_increment,
  `name` varchar(128) collate utf8_unicode_ci not null default ”,
  `url` varchar(255) collate utf8_unicode_ci not null default ”,
  `email` varchar(255) collate utf8_unicode_ci not null default
”,
  `body` text collate utf8_unicode_ci not null,
  `dt` timestamp not null default ‘0000-00-00’,
  primary key  (`id`)
) engine=myisam  default charset=utf8 collate=utf8_unicode_ci;

发表评论

电子邮件地址不会被公开。 必填项已用*标注