search_form_args filter-hook . WP 5.2.0

Filters the array of arguments used when generating the search form.

Usage

add_filter( 'search_form_args', 'filter_function_name_1560' );
function filter_function_name_1560( $args ){
	// filter...

	return $args;
}

$args(array)

The array of arguments for building the search form.

Where the hook is called

$args = apply_filters( 'search_form_args', $args );

Where the hook is used (in WP core)