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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 |
|---|---|
| 3674 | * Filter the shortlink anchor tag for a post. |
| 3675 | * |
| 3676 | * @since 3.0.0 |
| 3677 | * |
| 3678 | * @param string $link Shortlink anchor tag. |
| 3679 | * @param string $shortlink Shortlink URL. |
| 3680 | * @param string $text Shortlink's text. |
| 3681 | * @param string $title Shortlink's title attribute. |
| 3682 | */ |
| 3683 | $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title ); |
| 3684 | echo $before, $link, $after; |
| 3685 | } |
| 3686 | } |
| 3687 | |
| 3688 | |
| 3689 | /** |
| 3690 | * Retrieve the avatar URL. |
| 3691 | * |
| 3692 | * @since 4.2.0 |