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filter is not described

default_contextual_help filter-hook . WP 2.8.0

Deprecated in 3.3.0. It is no longer supported and can be removed in future releases. Use get_current_screen()->add_help_tab() or get_current_screen()->remove_help_tab() instead.

Deprecated: 3.3.0 Use get_current_screen()->add_help_tab() or
get_current_screen()->remove_help_tab() instead.

Filters the default legacy contextual help text.

Usage

add_filter( 'default_contextual_help', 'filter_function_name_2390' );
function filter_function_name_2390( $old_help_default ){
	// filter...

	return $old_help_default;
}
$old_help_default(string)
Default contextual help text.

Where the hook is called

WP_Screen::render_screen_meta()
default_contextual_help
wp-admin/includes/class-wp-screen.php 779
$default_help = apply_filters( 'default_contextual_help', '' );

Where the hook is used (in WP core)

Does not used.