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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 |
|---|---|
| 372 | |
| 373 | public static function delete_old_comments() { |
| 374 | global $wpdb; |
| 375 | |
| 376 | /** |
| 377 | * Determines how many comments will be deleted in each batch. |
| 378 | * |
| 379 | * @param int The default, as defined by AKISMET_DELETE_LIMIT. |
| 380 | */ |
| 381 | $delete_limit = apply_filters( 'akismet_delete_comment_limit', defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ); |
| 382 | $delete_limit = max( 1, intval( $delete_limit ) ); |
| 383 | |
| 384 | /** |
| 385 | * Determines how many days a comment will be left in the Spam queue before being deleted. |
| 386 | * |
| 387 | * @param int The default number of days. |
| 388 | */ |
| 389 | $delete_interval = apply_filters( 'akismet_delete_comment_interval', 15 ); |
| 390 | $delete_interval = max( 1, intval( $delete_interval ) ); |