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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 |
|---|---|
| 1006 | * @since 2.3.0 |
| 1007 | * @uses apply_filters() Calls 'the_tags' filter on string list of tags. |
| 1008 | * |
| 1009 | * @param string $before Optional. Before tags. |
| 1010 | * @param string $sep Optional. Between tags. |
| 1011 | * @param string $after Optional. After tags. |
| 1012 | * @return string |
| 1013 | */ |
| 1014 | function get_the_tag_list( $before = '', $sep = '', $after = '' ) { |
| 1015 | return apply_filters( 'the_tags', get_the_term_list( 0, 'post_tag', $before, $sep, $after ), $before, $sep, $after); |
| 1016 | } |
| 1017 | |
| 1018 | /** |
| 1019 | * Retrieve the tags for a post. |
| 1020 | * |
| 1021 | * @since 2.3.0 |
| 1022 | * |
| 1023 | * @param string $before Optional. Before list. |
| 1024 | * @param string $sep Optional. Separate items using this. |