How to integrate Akismet in wordpress/php programmatically - php

Question

I would like to check a custom form against spam using Akismet.
I searched the web and the only simple way I found is this (see code excerpt below): http://www.binarymoon.co.uk/2010/03/akismet-plugin-theme-stop-spam-dead/. Unfortunately $isSpam returns true!
Does anyone know how to do the magic? I appreciate your help.
function akismet_isSpam ($content) {
// innocent until proven guilty
$isSpam = FALSE;
$content = (array) $content;
if (function_exists('akismet_init')) {
$wpcom_api_key = get_option('wordpress_api_key');
if (!empty($wpcom_api_key)) {
global $akismet_api_host, $akismet_api_port;
// set remaining required values for akismet api
$content['user_ip'] = preg_replace( '/[^0-9., ]/', '', $_SERVER['REMOTE_ADDR'] );
$content['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
$content['referrer'] = $_SERVER['HTTP_REFERER'];
$content['blog'] = get_option('home');
if (empty($content['referrer'])) {
$content['referrer'] = get_permalink();
}
$queryString = '';
foreach ($content as $key => $data) {
if (!empty($data)) {
$queryString .= $key . '=' . urlencode(stripslashes($data)) . '&';
}
}
$response = akismet_http_post($queryString, $akismet_api_host, '/1.1/comment-check', $akismet_api_port);
smart_dump($response, true);
if ($response[1] == 'true') {
update_option('akismet_spam_count', get_option('akismet_spam_count') + 1);
$isSpam = TRUE;
}
}
}
return $isSpam;
}

Answer 1

First , you can assume akismet is installed and API key verified, that will allow you to use the akismet_http_post function directly to post the data to servers ..
// Like above mentioned, We assume that :
// Akismet is installed with the corresponding API key
if( function_exists( 'akismet_http_post' ) )
{
global $akismet_api_host, $akismet_api_port;
// data to be delivered to Akismet (This is what you need Modify this to your needs)
$data = array(
'comment_author' => 'Spammer Spammy',
'comment_author_email' => 'spammy#spamserver.com',
'comment_author_url' => 'spamming.com',
'comment_content' => 'my Spam',
'user_ip' => '99.99.99.99',
'user_agent' => '',
'referrer' => '',
'blog' => 'http://example.com',
'blog_lang' => 'en_US',
'blog_charset' => 'UTF-8',
'permalink' => 'http://example.com/my-link',
'is_test' => TRUE,
);
// Now we need to construct the query string
$query_string = http_build_query( $data );
// and then post it to Akismet
$response = akismet_http_post( $query_string, $akismet_api_host, '/1.1/comment-check', $akismet_api_port );
// ..and check the results
$result = ( is_array( $response ) && isset( $response[1] ) ) ? $response[1] : 'false';
// display the result ( 'true', 'false' or any error message you want )
printf( 'Spam check according to Akismet :%s', $result );
}
This was not thoroughly tested , but should work..
Note that the blog, user_ip and user_agent parameters are required for the akismet_http_post function.
Also, it would be nice to mention that Akismet has libraries and good API documents .