$ext = ( $extension != '' ) ? ".{$extension}" : "";
for ( $attempt = 1; true; $attempt++ ) {
$path = "{$base}-{$attempt}{$ext}";
$ext = ( $extension != '' ) ? ".{$extension}" : "";
for ( $attempt = 1; true; $attempt++ ) {
$path = "{$base}-{$attempt}{$ext}";