a trace function for wordpress debugging

//* add a trace file
$upload_dir = wp_upload_dir(); 
define('TRACEFILE', $upload_dir['basedir'] . '/trace.log');
function trace($log) {
	$prefix = current_time( 'mysql' ) . ": " ;
	$suffix = "\n" ;
	
	if ( is_array( $log ) || is_object( $log ) ) {
		error_log( $prefix, 3, TRACEFILE);
		error_log( print_r( $log, true ) , 3, TRACEFILE );
		error_log( $suffix, 3, TRACEFILE ) ;
	} 
	else {
		error_log( $prefix . $log . $suffix, 3, TRACEFILE );
	}
}