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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 169 | $response = explode( "\r\n\r\n", $response, 2 ); |
| 170 | } |
| 171 | return $response; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | // filter handler used to return a spam result to pre_comment_approved |
| 176 | function akismet_result_spam( $approved ) { |
| 177 | // bump the counter here instead of when the filter is added to reduce the possibility of overcounting |
| 178 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 179 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 180 | // this is a one-shot deal |
| 181 | remove_filter( 'pre_comment_approved', 'akismet_result_spam' ); |
| 182 | return 'spam'; |
| 183 | } |
| 184 | |
| 185 | function akismet_result_hold( $approved ) { |
| 186 | // once only |
| 187 | remove_filter( 'pre_comment_approved', 'akismet_result_hold' ); |
| Line | Code |
| 350 | do_action( 'akismet_spam_caught' ); |
| 351 | |
| 352 | $post = get_post( $comment['comment_post_ID'] ); |
| 353 | $last_updated = strtotime( $post->post_modified_gmt ); |
| 354 | $diff = time() - $last_updated; |
| 355 | $diff = $diff / 86400; |
| 356 | |
| 357 | if ( $post->post_type == 'post' && $diff > 30 && get_option( 'akismet_discard_month' ) == 'true' && empty($comment['user_ID']) ) { |
| 358 | // akismet_result_spam() won't be called so bump the counter here |
| 359 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 360 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 361 | wp_redirect( $_SERVER['HTTP_REFERER'] ); |
| 362 | die(); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | // if the response is neither true nor false, hold the comment for moderation and schedule a recheck |
| 367 | if ( 'true' != $response[1] && 'false' != $response[1] ) { |
| 368 | add_filter('pre_comment_approved', 'akismet_result_hold'); |