So, I inherited this project and I'm coming across this weird Unicode error the website is rendering:  Now, when I use the Developer Tool Kit inside the Zen cart admin panel to find where this error is, it says the location is: Line #0 : <?php, how could this happen? If I knew where the error was being produced I would post a code snippet but, I honestly have no idea. Any suggestions?
Ivan Gabriele is correct it is referred to as a shadow character: What's  sign at the beginning of my source file?
The why to resolve the issue in Visual Studio is also posted here: UTF-8 without BOM