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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 |
|---|---|
| 185 | // akismet_spam_count will be incremented later by comment_is_spam() |
| 186 | self::$last_comment_result = 'spam'; |
| 187 | |
| 188 | $discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() ); |
| 189 | |
| 190 | do_action( 'akismet_spam_caught', $discard ); |
| 191 | |
| 192 | if ( $discard ) { |
| 193 | // akismet_result_spam() won't be called so bump the counter here |
| 194 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 195 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 196 | // The spam is obvious, so we're bailing out early. Redirect back to the previous page, |
| 197 | // or failing that, the post permalink, or failing that, the homepage of the blog. |
| 198 | $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : ( $post ? get_permalink( $post ) : home_url() ); |
| 199 | wp_safe_redirect( esc_url_raw( $redirect_to ) ); |
| 200 | die(); |
| 201 | } |
| 202 | } |
| 203 | |
| Line | Code |
| 909 | } |
| 910 | |
| 911 | // Only do this if it's the correct comment |
| 912 | if ( ! self::matches_last_comment( $comment ) ) { |
| 913 | self::log( "comment_is_spam mismatched comment, returning unaltered $approved" ); |
| 914 | return $approved; |
| 915 | } |
| 916 | |
| 917 | // bump the counter here instead of when the filter is added to reduce the possibility of overcounting |
| 918 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 919 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 920 | |
| 921 | return self::$last_comment_result; |
| 922 | } |
| 923 | |
| 924 | /** |
| 925 | * If Akismet is temporarily unreachable, we don't want to "spam" the blogger with |
| 926 | * moderation emails for comments that will be automatically cleared or spammed on |
| 927 | * the next retry. |