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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 |
---|---|
550 | /** |
551 | * Fires inside the auxiliary 'Actions' column of the Sites list table. |
552 | * |
553 | * By default this column is hidden unless something is hooked to the action. |
554 | * |
555 | * @since MU (3.0.0) |
556 | * |
557 | * @param int $blog_id The site ID. |
558 | */ |
559 | do_action( 'wpmublogsaction', $blog['blog_id'] ); |
560 | } |
561 | } |
562 |
|
563 | /** |
564 | * Handles output for the default column. |
565 | * |
566 | * @since 4.3.0 |
567 | * @since 5.9.0 Renamed `$blog` to `$item` to match parent class for PHP 8 named parameter support. |
568 | * |