使用 Akismet 防止垃圾评论

<?

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;
}

?>