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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 |
|---|---|
| 56 | * Filters the trailing-slashed string, depending on whether the site is set to use trailing slashes. |
| 57 | * |
| 58 | * @since 2.2.0 |
| 59 | * |
| 60 | * @param string $string URL with or without a trailing slash. |
| 61 | * @param string $type_of_url The type of URL being considered. Accepts 'single', 'single_trackback', |
| 62 | * 'single_feed', 'single_paged', 'commentpaged', 'paged', 'home', 'feed', |
| 63 | * 'category', 'page', 'year', 'month', 'day', 'post_type_archive'. |
| 64 | */ |
| 65 | return apply_filters( 'user_trailingslashit', $string, $type_of_url ); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Displays the permalink anchor for the current post. |
| 70 | * |
| 71 | * The permalink mode title will use the post title for the 'a' element 'id' |
| 72 | * attribute. The id mode uses 'post-' with the post ID for the 'id' attribute. |
| 73 | * |
| 74 | * @since 0.71 |