Hello and welcome to 4images forum.
If you save your files in UTF8/UTF16 (Unicode) encoding, you must make sure that the editor doesn't add so called
BOM to the file. If editor doesn't have such feature to add or not "BOM", then change the editor
![Wink ;)](https://www.4homepages.de/forum/Smileys/default/icon_wink.gif)
There is no need save php files in other encoding then ACSII, unless its a language file.