I'm developing a website using PHP and these strange chars "" appears in my page, right on the top of it. My code is this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><?php echo '';?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
But when I see the source code in the browser, it shows this:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
I don't know if has any relation to the encoding I'm using, because when I change the charset to charset=utf-8 it disappears but I must use iso-8859-1
That's a BOM character, which is there because the source code files are saved as UTF-8 BOM. Try to save them as UTF-8 no-BOM (or whatever your editor calls it) or indeed ISO-8859-1 if you must use it (...why would you?).
If you want to use iso-8859-1, you need to save your PHP file as iso-8859-1.
For detailed instructions, please tell us which editor you're using.
However, I highly recommend that you use UTF8 instead.
Look at the "Page Info" screen and see what character set the browser thinks you're in. The odds are that your web server is forcing UTF-8 with its Content-Type header, which trumps the meta tag.
simple solution, just placed your html/php code is start from first line, I am just do that to resolve these problem, and it's work.
来源：https://stackoverflow.com/questions/3242762/%c3%af-enconding-issue