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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 |
|---|---|
| 796 | * @since 2.3.0 |
| 797 | * @uses apply_filters() Calls 'the_tags' filter on string list of tags. |
| 798 | * |
| 799 | * @param string $before Optional. Before tags. |
| 800 | * @param string $sep Optional. Between tags. |
| 801 | * @param string $after Optional. After tags. |
| 802 | * @return string |
| 803 | */ |
| 804 | function get_the_tag_list( $before = '', $sep = '', $after = '' ) { |
| 805 | return apply_filters( 'the_tags', get_the_term_list( 0, 'post_tag', $before, $sep, $after ), $before, $sep, $after); |
| 806 | } |
| 807 | |
| 808 | /** |
| 809 | * Retrieve the tags for a post. |
| 810 | * |
| 811 | * @since 2.3.0 |
| 812 | * |
| 813 | * @param string $before Optional. Before list. |
| 814 | * @param string $sep Optional. Separate items using this. |