sanitize_textarea_field filter-hook . WP 4.7.0

Filters a sanitized textarea field string.

Usage

add_filter( 'sanitize_textarea_field', 'filter_function_name_4951', 10, 2 );
function filter_function_name_4951( $filtered, $str ){
	// filter...

	return $filtered;
}

$filtered(string)

The sanitized string.

$str(string)

The string prior to being sanitized.

Where the hook is called

return apply_filters( 'sanitize_textarea_field', $filtered, $str );

Where in WP core the hook is used WordPress