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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 |
---|---|
545 | /** |
546 | * Fires inside the auxiliary 'Actions' column of the Sites list table. |
547 | * |
548 | * By default this column is hidden unless something is hooked to the action. |
549 | * |
550 | * @since MU (3.0.0) |
551 | * |
552 | * @param int $blog_id The site ID. |
553 | */ |
554 | do_action( 'wpmublogsaction', $blog['blog_id'] ); |
555 | } |
556 | } |
557 |
|
558 | /** |
559 | * Handles output for the default column. |
560 | * |
561 | * @since 4.3.0 |
562 | * @since 5.9.0 Renamed `$blog` to `$item` to match parent class for PHP 8 named parameter support. |
563 | * |