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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 |
|---|---|
| 3654 | * Filter the shortlink anchor tag for a post. |
| 3655 | * |
| 3656 | * @since 3.0.0 |
| 3657 | * |
| 3658 | * @param string $link Shortlink anchor tag. |
| 3659 | * @param string $shortlink Shortlink URL. |
| 3660 | * @param string $text Shortlink's text. |
| 3661 | * @param string $title Shortlink's title attribute. |
| 3662 | */ |
| 3663 | $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title ); |
| 3664 | echo $before, $link, $after; |
| 3665 | } |
| 3666 | } |
| 3667 | |
| 3668 | |
| 3669 | /** |
| 3670 | * Retrieve the avatar URL. |
| 3671 | * |
| 3672 | * @since 4.2.0 |