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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 |
|---|---|
| 3693 | */ |
| 3694 | function the_search_query() { |
| 3695 | /** |
| 3696 | * Filters the contents of the search query variable for display. |
| 3697 | * |
| 3698 | * @since 2.3.0 |
| 3699 | * |
| 3700 | * @param mixed $search Contents of the search query variable. |
| 3701 | */ |
| 3702 | echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) ); |
| 3703 | } |
| 3704 | |
| 3705 | /** |
| 3706 | * Gets the language attributes for the html tag. |
| 3707 | * |
| 3708 | * Builds up a set of html attributes containing the text direction and language |
| 3709 | * information for the page. |
| 3710 | * |
| 3711 | * @since 4.3.0 |