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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 |
|---|---|
| 196 | self::$last_comment_result = 'spam'; |
| 197 | |
| 198 | $discard = ( isset( $commentdata['akismet_pro_tip'] ) && $commentdata['akismet_pro_tip'] === 'discard' && self::allow_discard() ); |
| 199 | |
| 200 | do_action( 'akismet_spam_caught', $discard ); |
| 201 | |
| 202 | if ( $discard ) { |
| 203 | // The spam is obvious, so we're bailing out early. |
| 204 | // akismet_result_spam() won't be called so bump the counter here |
| 205 | if ( $incr = apply_filters( 'akismet_spam_count_incr', 1 ) ) { |
| 206 | update_option( 'akismet_spam_count', get_option( 'akismet_spam_count' ) + $incr ); |
| 207 | } |
| 208 | |
| 209 | if ( self::$is_rest_api_call ) { |
| 210 | return new WP_Error( 'akismet_rest_comment_discarded', __( 'Comment discarded.', 'akismet' ) ); |
| 211 | } |
| 212 | else { |
| 213 | // Redirect back to the previous page, or failing that, the post permalink, or failing that, the homepage of the blog. |
| 214 | $redirect_to = isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : ( $post ? get_permalink( $post ) : home_url() ); |
| Line | Code |
| 931 | // If the last comment we checked has had its approval set to 'trash', |
| 932 | // then it failed the comment blacklist check. Let that blacklist override |
| 933 | // the spam check, since users have the (valid) expectation that when |
| 934 | // they fill out their blacklists, comments that match it will always |
| 935 | // end up in the trash. |
| 936 | return $approved; |
| 937 | } |
| 938 | |
| 939 | // bump the counter here instead of when the filter is added to reduce the possibility of overcounting |
| 940 | if ( $incr = apply_filters('akismet_spam_count_incr', 1) ) |
| 941 | update_option( 'akismet_spam_count', get_option('akismet_spam_count') + $incr ); |
| 942 | |
| 943 | return self::$last_comment_result; |
| 944 | } |
| 945 | |
| 946 | /** |
| 947 | * If Akismet is temporarily unreachable, we don't want to "spam" the blogger with |
| 948 | * moderation emails for comments that will be automatically cleared or spammed on |
| 949 | * the next retry. |