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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 |
|---|---|
| 606 | * Filters the HTML link to the Registration or Admin page. |
| 607 | * |
| 608 | * Users are sent to the admin page if logged-in, or the registration page |
| 609 | * if enabled and logged-out. |
| 610 | * |
| 611 | * @since 1.5.0 |
| 612 | * |
| 613 | * @param string $link The HTML code for the link to the Registration or Admin page. |
| 614 | */ |
| 615 | $link = apply_filters( 'register', $link ); |
| 616 | |
| 617 | if ( $echo ) { |
| 618 | echo $link; |
| 619 | } else { |
| 620 | return $link; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | /** |