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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 |
---|---|
3919 | * Filters the shortlink for a post. |
3920 | * |
3921 | * @since 3.0.0 |
3922 | * |
3923 | * @param string $shortlink Shortlink URL. |
3924 | * @param int $id Post ID, or 0 for the current post. |
3925 | * @param string $context The context for the link. One of 'post' or 'query', |
3926 | * @param bool $allow_slugs Whether to allow post slugs in the shortlink. Not used by default. |
3927 | */ |
3928 | return apply_filters( 'get_shortlink', $shortlink, $id, $context, $allow_slugs ); |
3929 | } |
3930 |
|
3931 | /** |
3932 | * Injects rel=shortlink into the head if a shortlink is defined for the current page. |
3933 | * |
3934 | * Attached to the {@see 'wp_head'} action. |
3935 | * |
3936 | * @since 3.0.0 |
3937 | */ |