Error log utility function

/**
 * Writes string, array, and object data to the WP error log.
 * 
 * To use, pass the result to write to the log as follows:
 * write_log( $value_to_write );
 *
 * @param string|array|object $log
 */
function write_log( $log )  {
    if ( is_array( $log ) || is_object( $log ) ) {
        error_log( print_r( $log, true ) );
    } else {
        error_log( $log );
    }
}