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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; |