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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 |
---|---|
628 | /** |
629 | * Filters the default site display states for items in the Sites list table. |
630 | * |
631 | * @since 5.3.0 |
632 | * |
633 | * @param string[] $site_states An array of site states. Default 'Main', |
634 | * 'Archived', 'Mature', 'Spam', 'Deleted'. |
635 | * @param WP_Site $site The current site object. |
636 | */ |
637 | $site_states = apply_filters( 'display_site_states', $site_states, $_site ); |
638 |
|
639 | if ( ! empty( $site_states ) ) { |
640 | $state_count = count( $site_states ); |
641 |
|
642 | $i = 0; |
643 |
|
644 | echo ' — '; |
645 |
|
646 | foreach ( $site_states as $state ) { |