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A PHP class that enables you use the Akismet anti-spam service in your PHP5 application.

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This is a simple little PHP5 class that enables you use the Akismet anti-spam service in your PHP5 application.


Check out the git repository:

git clone [email protected]:achingbrain/php5-akismet.git


Once you have cloned the repo (see Download, above) copy the file at src/main/php/net/achingbrain/Akismet.class.php to somewhere accessible to your scripts. Use include or a derivative to import it into your script.

Alternatively if you are running a version of PHP greater than 5.3, grab the phar file and use the following code:


See the PHPDocs.


Before you can use Akismet, you need a WordPress API key (they are free and getting one takes about five minutes). Once you have one, take a look at the code below:

$WordPressAPIKey = 'aoeu1aoue';
$MyBlogURL = '';

$akismet = new Akismet($MyBlogURL ,$WordPressAPIKey); $akismet->setCommentAuthor($name); $akismet->setCommentAuthorEmail($email); $akismet->setCommentAuthorURL($url); $akismet->setCommentContent($comment); $akismet->setPermalink('');

if($akismet->isCommentSpam()) // store the comment but mark it as spam (in case of a mis-diagnosis) else // store the comment normally

That's just about it. In the event that the filter wrongly tags messages, you can at a later date create a new object and populate it from your database, overriding fields where necessary and then use the following two methods to train it:




to submit mis-diagnosed spam and ham, which improves the system for everybody. See the included documentation for a complete run-down of all available methods.


Version 0.5

  • Deployed to GitHub instead of for better collaboration in future
  • Converted project to use Maven for unit testing and documentation generation
  • Unit tests & documentaiton
  • Allowed overriding of user agent when submitting ham/spam (thanks Steven)

Version 0.4

  • Performance – changed HTTP version from 1.1 to 1.0 (with thanks to Jan De Poorter).
  • Performance – No longer issues a separate HTTP request to check validity of the API key with every instantiation.
  • Added a new public method 'isKeyValid' to manually check validity of the API key passed to the constructor.
  • The method 'isCommentSpam' (rather than the constructor) will now throw an exception if the API key is invalid.
  • Tidied up internal structure a bit.

Version 0.3

Internal testing version

Version 0.2

Initial release

Version 0.1

Internal testing version

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