Headers already sent by how to solve?

Question

PHP

What could be the problem? The title is at the beginning of the page, utf-8 encoding, phpstorm sets without BOM automatically, went to other editors - the same problem.

Answer 1

Apparently all the same there is some kind of non-printable character, just without BOM. Just try to recreate the "clean" index.php in the same win-notepad to check. Output started - explicitly points to line: 1