php中使用Akismet防止垃圾评论的代码

然而，人无完人，插（件）无完插！akismet也并非完美，最近， 我常在被akismet评判为垃圾的留言中找到“好人”的留言，然而，有时时间长了就自动删除了，损失珍贵的友情和留言。 
别忘了修改代码中的 __your_akismet_key__, __your_website_url__ and __your_name__ 
http://www.script-tutorials.com/akismet-spam-protection/ 
index.php 
复制代码 代码如下: 
<? 
require_once ('classes/akismet.class.php'); 
class myspamprotection { 
// variables 
var $smyakismetkey; 
var $swebsiteurl; 
var $sauthname; 
var $sautheml; 
var $sauthurl; 
var $oakismet; 
// constructor 
public function myspamprotection() { 
// set necessary values for variables 
$this->smyakismetkey = '__your_akismet_key__'; 
$this->swebsiteurl = '__your_website_url__'; 
$this->sauthname = '__your_name__'; 
$this->sautheml = ''; 
$this->sauthurl = ''; 
// akismet initialization 
$this->oakismet = new akismet($this->swebsiteurl ,$this->smyakismetkey); 
$this->oakismet->setcommentauthor($this->sauthname); 
$this->oakismet->setcommentauthoremail($this->sautheml); 
$this->oakismet->setcommentauthorurl($this->sauthurl); 
} 
public function isspam($s) { 
if (! $this->oakismet) return false; 
$this->oakismet->setcommentcontent($s); 
return $this->oakismet->iscommentspam(); 
} 
} 
echo <<<eof 
<style type="text/css"> 
form div { 
margin:10px; 
} 
form label { 
width:90px; 
float:left; 
display:block; 
} 
</style> 
<form action="" method="post"> 
<div><label for="author">author</label><input id="author" name="author" type="text" value="" /></div> 
<div><label for="comment">comment</label><textarea id="comment" name="comment" cols="20" rows="4"></textarea></div> 
<div><input name="submit" type="submit" value="send" /></div> 
</form> 
eof; 
if ($_post) { 
// draw debug information 
echo '<pre>'; 
print_r($_post); 
echo '</pre>'; 
// obtain sent info 
$spostauthor = $_post['author']; 
$scommentcomment = $_post['comment']; 
// check for spam 
$omyspamprotection = new myspamprotection(); 
$sauthorcheck = ($omyspamprotection->isspam($spostauthor)) ? ' "author" marked as spam' : '"author" not marked as spam'; 
$scommentcheck = ($omyspamprotection->isspam($scommentcomment)) ? ' "comment" marked as spam' : '"comment" not marked as spam'; 
echo $sauthorcheck . '<br />' . $scommentcheck; 
} 
?> 

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