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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 |
---|---|
421 | /** |
422 | * Fires inside the auxiliary 'Actions' column of the Sites list table. |
423 | * |
424 | * By default this column is hidden unless something is hooked to the action. |
425 | * |
426 | * @since MU |
427 | * |
428 | * @param int $blog_id The site ID. |
429 | */ |
430 | do_action( 'wpmublogsaction', $blog['blog_id'] ); |
431 | } |
432 | } |
433 |
|
434 | /** |
435 | * Handles output for the default column. |
436 | * |
437 | * @since 4.3.0 |
438 | * @access public |
439 | * |