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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.
| Line | Code |
|---|---|
| 341 | } |
| 342 | |
| 343 | // Prepared as strings since comment_id is an unsigned BIGINT, and using %d will constrain the value to the maximum signed BIGINT. |
| 344 | $format_string = implode( ", ", array_fill( 0, count( $comment_ids ), '%s' ) ); |
| 345 | |
| 346 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->comments} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 347 | $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->commentmeta} WHERE comment_id IN ( " . $format_string . " )", $comment_ids ) ); |
| 348 | |
| 349 | clean_comment_cache( $comment_ids ); |
| 350 | do_action( 'akismet_delete_comment_batch', count( $comment_ids ) ); |
| 351 | } |
| 352 | |
| 353 | if ( apply_filters( 'akismet_optimize_table', ( mt_rand(1, 5000) == 11), $wpdb->comments ) ) // lucky number |
| 354 | $wpdb->query("OPTIMIZE TABLE {$wpdb->comments}"); |
| 355 | } |
| 356 | |
| 357 | public static function delete_old_comments_meta() { |
| 358 | global $wpdb; |
| 359 | |