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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 |
|---|---|
| 2533 | $output = implode(' ', $attributes); |
| 2534 | |
| 2535 | /** |
| 2536 | * Filter the language attributes for display in the html tag. |
| 2537 | * |
| 2538 | * @since 2.5.0 |
| 2539 | * |
| 2540 | * @param string $output A space-separated list of language attributes. |
| 2541 | */ |
| 2542 | echo apply_filters( 'language_attributes', $output ); |
| 2543 | } |
| 2544 | |
| 2545 | /** |
| 2546 | * Retrieve paginated link for archive post pages. |
| 2547 | * |
| 2548 | * Technically, the function can be used to create paginated link list for any |
| 2549 | * area. The 'base' argument is used to reference the url, which will be used to |
| 2550 | * create the paginated links. The 'format' argument is then used for replacing |
| 2551 | * the page number. It is however, most likely and by default, to be used on the |