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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 |
|---|---|
| 1868 | * Display the contents of the search query variable. |
| 1869 | * |
| 1870 | * The search query string is passed through {@link esc_attr()} |
| 1871 | * to ensure that it is safe for placing in an html attribute. |
| 1872 | * |
| 1873 | * @uses esc_attr() |
| 1874 | * @since 2.1.0 |
| 1875 | */ |
| 1876 | function the_search_query() { |
| 1877 | echo esc_attr( apply_filters( 'the_search_query', get_search_query( false ) ) ); |
| 1878 | } |
| 1879 | |
| 1880 | /** |
| 1881 | * Display the language attributes for the html tag. |
| 1882 | * |
| 1883 | * Builds up a set of html attributes containing the text direction and language |
| 1884 | * information for the page. |
| 1885 | * |
| 1886 | * @since 2.1.0 |