Utf-8编码不能使用php 5.5在utf-8编码的文件上工作

Question

I am experiencing a very strange kind of encoding problem i don't really understand and never had before. I am using PHP 5.5 on an Ubuntu machine just for the info.

To the Problem

I have a simple file index.php where i want to print this simple string

<?php echo "übermotivierter";  ?>

When viewing this in the Browser i would expect following ouput

�bermotivierter

This works like expected!

To display this in the correct way i have done following steps

1. Changed the encoding of my IDE ( Zend Studio ) to UTF-8 and saved the file again

2. Set the appropriate html meta tag

   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   

3. Set the appropriate php header

   <?php header("Content-Type: text/html; charset=utf-8"); ?>
   

After doing this i would have expected this to display in a correct way but i am still getting this weired � in the output!

The workaround

To make this thing displaying correctly i had to do that

<?php echo utf8_encode("übermotivierter");  ?>

Now it displays in a correct way.

My Question

I really dont understand why i have to use utf8_encode when my document already is encoded and saved in utf-8. That doesn't make any sense to me. Any explanation to this?

Answer 1

Not an answer but too long for a comment:

Could you please try

<?php
$s = "übermotivierter";
echo '<p>', $s, '</p><p>';
for($i=0; $i<strlen($s); $i++) {
    printf('%02x ', ord($s[$i]));
}
echo '</p>';

in the place where you had <?php echo "übermotivierter"; ?>?
What's the output of that?