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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 |
|---|---|
| 667 | /** |
| 668 | * Filters the arguments for initializing a site. |
| 669 | * |
| 670 | * @since 5.1.0 |
| 671 | * |
| 672 | * @param array $args Arguments to modify the initialization behavior. |
| 673 | * @param WP_Site $site Site that is being initialized. |
| 674 | * @param WP_Network $network Network that the site belongs to. |
| 675 | */ |
| 676 | $args = apply_filters( 'wp_initialize_site_args', $args, $site, $network ); |
| 677 | |
| 678 | $orig_installing = wp_installing(); |
| 679 | if ( ! $orig_installing ) { |
| 680 | wp_installing( true ); |
| 681 | } |
| 682 | |
| 683 | $switch = false; |
| 684 | if ( get_current_blog_id() !== $site->id ) { |
| 685 | $switch = true; |