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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 |
|---|---|
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * Filters the HTML output of the search form. |
| 292 | * |
| 293 | * @since 2.7.0 |
| 294 | * |
| 295 | * @param string $form The search form HTML output. |
| 296 | */ |
| 297 | $result = apply_filters( 'get_search_form', $form ); |
| 298 | |
| 299 | if ( null === $result ) { |
| 300 | $result = $form; |
| 301 | } |
| 302 | |
| 303 | if ( isset( $args['echo'] ) && $args['echo'] ) { |
| 304 | echo $result; |
| 305 | } else { |
| 306 | return $result; |