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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 |
|---|---|
| 3979 | * Filters the short link anchor tag for a post. |
| 3980 | * |
| 3981 | * @since 3.0.0 |
| 3982 | * |
| 3983 | * @param string $link Shortlink anchor tag. |
| 3984 | * @param string $shortlink Shortlink URL. |
| 3985 | * @param string $text Shortlink's text. |
| 3986 | * @param string $title Shortlink's title attribute. |
| 3987 | */ |
| 3988 | $link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title ); |
| 3989 | echo $before, $link, $after; |
| 3990 | } |
| 3991 | } |
| 3992 | |
| 3993 | |
| 3994 | /** |
| 3995 | * Retrieves the avatar URL. |
| 3996 | * |
| 3997 | * @since 4.2.0 |