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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 |
|---|---|
| 349 | |
| 350 | public static function delete_old_comments() { |
| 351 | global $wpdb; |
| 352 | |
| 353 | /** |
| 354 | * Determines how many comments will be deleted in each batch. |
| 355 | * |
| 356 | * @param int The default, as defined by AKISMET_DELETE_LIMIT. |
| 357 | */ |
| 358 | $delete_limit = apply_filters( 'akismet_delete_comment_limit', defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ); |
| 359 | $delete_limit = max( 1, intval( $delete_limit ) ); |
| 360 | |
| 361 | /** |
| 362 | * Determines how many days a comment will be left in the Spam queue before being deleted. |
| 363 | * |
| 364 | * @param int The default number of days. |
| 365 | */ |
| 366 | $delete_interval = apply_filters( 'akismet_delete_comment_interval', 15 ); |
| 367 | $delete_interval = max( 1, intval( $delete_interval ) ); |