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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 |
|---|---|
| 761 | $slug = $tag->slug; |
| 762 | |
| 763 | if ( empty( $taglink ) ) { |
| 764 | $file = get_option( 'home' ) . '/'; |
| 765 | $taglink = $file . '?tag=' . $slug; |
| 766 | } else { |
| 767 | $taglink = str_replace( '%tag%', $slug, $taglink ); |
| 768 | $taglink = get_option( 'home' ) . user_trailingslashit( $taglink, 'category' ); |
| 769 | } |
| 770 | return apply_filters( 'tag_link', $taglink, $tag_id ); |
| 771 | } |
| 772 | |
| 773 | /** |
| 774 | * Retrieve the tags for a post. |
| 775 | * |
| 776 | * @since 2.3.0 |
| 777 | * @uses apply_filters() Calls 'get_the_tags' filter on the list of post tags. |
| 778 | * |
| 779 | * @param int $id Post ID. |