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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 |
|---|---|
| 403 | */ |
| 404 | $delete_limit = apply_filters( 'akismet_delete_comment_limit', defined( 'AKISMET_DELETE_LIMIT' ) ? AKISMET_DELETE_LIMIT : 10000 ); |
| 405 | $delete_limit = max( 1, intval( $delete_limit ) ); |
| 406 | |
| 407 | /** |
| 408 | * Determines how many days a comment will be left in the Spam queue before being deleted. |
| 409 | * |
| 410 | * @param int The default number of days. |
| 411 | */ |
| 412 | $delete_interval = apply_filters( 'akismet_delete_comment_interval', 15 ); |
| 413 | $delete_interval = max( 1, intval( $delete_interval ) ); |
| 414 | |
| 415 | while ( $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_id FROM {$wpdb->comments} WHERE DATE_SUB(NOW(), INTERVAL %d DAY) > comment_date_gmt AND comment_approved = 'spam' LIMIT %d", $delete_interval, $delete_limit ) ) ) { |
| 416 | if ( empty( $comment_ids ) ) |
| 417 | return; |
| 418 | |
| 419 | $wpdb->queries = array(); |
| 420 | |
| 421 | $comments = array(); |