Encoding problem (UTF-8) in PHP

Question

I want to output the following string in PHP:

ä ö ü ß €

Therefore, I've encoded it to utf8 manually:

ä ö ü ß €

So my script is:

<?php
header('content-type: text/html; charset=utf-8');
echo 'ä ö ü ß €';
?>

The first 4 characters are correct (ä ö ü ß) but unfortunately the € sign isn't correct:

ä ö ü ß

Here you can see it.

Can you tell me what I've done wrong? My editor (Notepad++) has settings for Encoding (Ansi/UTF-8) and Format (Windows/Unix). Do I have to change them?

I hope you can help me. Thanks in advance!

Answer 1

That last character just isn't in the file (try viewing the source), which is why you don't see it.

I think you might be better off saving the PHP file as UTF-8 (in Notepad++ that options is available in Format -> Encode in UTF-8 without BOM), and inserting the actual characters in your PHP file (i.e. in Notepad++), rather than hacking around with inserting Ã everywhere. You may find Windows Character Map useful for inserting unicode characters.

Answer 2

The Euro sign (U+20AC) is encoded in UTF-8 with three bytes, not two. This can be seen here. So your encoding is simply wrong.

Answer 3

If you want to output it properly to utf8, your script should be:

<?php
header('content-type: text/html; charset=utf-8');
echo "\xc3\xa4"."\xc3\xb6"."\xc3\xbc"."\xc3\x9f"."\xe2\x82\xac";
?>

That way even if your php script is saved to a non-utf-8 encoding, it will still work.

Answer 4

You should always set your editor to the same encoding that the generated HTML instructs the browser to use. If the HTML page is intended to be interpreted as UTF-8, then set your text editor to UTF-8. PHP is completely unaware of the encoding settings of the editor used to create the file; it treats strings as a stream of bytes.

In other words, as long as the right bytes are in the file, everything will work. And the easiest way to ensure the right bytes are in the file, is to set your encoding to the same one the web page is supposed to be in. Anything else just makes life more difficult than it needs to be.

But the best defence is to leave non-ASCII characters out of the code completely. You can pull them out of a database or localisation file instead. This means the code can be modified in essentially any editor without worrying about damaging the encoding.

Answer 5

header('Content-Type: text/html; charset=UTF-8');

This just informs the browsers what kind of content you're going to send it and how it should treat it. It does not set the encoding of the actual content you're sending. It's completely up to you to fulfil your own promise. Your content is not going to magically transform from whatever to UTF-8 just because you set that header. If you tell the browser to treat the content as UTF-8, but you're sending it Latin-1 encoded data, of course it will break.

I refer you to What Every Programmer Absolutely, Positively Needs To Know About Encodings And Character Sets To Work With Text

Answer 6

this worked for me

    if (mb_check_encoding($value, 'UTF-8')) {
      return $value = utf8_encode($value);  
    }  
    else  {
      return $value;
    }

Source : https://github.com/jdorn/php-reports/issues/100

Answer 7

Try this it works for me. This code will change 㶠to ö

<?php

header('Content-Type: text/html; charset=UTF-8');
echo $category = 'Computer & Zubehör';
exit;

?>

Result: Computer & Zubehör