strlen() no longer "works":
<?php
$str 
"Vær sÃ¥ god!";
echo 
"The string has length: "strlen($str);
?>
Output:
The string has length: 13


substr() may mangle text:
<?php
$str 
"Vær sÃ¥ god!";
echo 
"The first 7 characters are: "substr($str07);
?>
Output:
The first 7 characters are: Vær sÃ


wordwrap() wraps too early:
<?php
$str 
"Vær sÃ¥ god!";
echo 
wordwrap($str6'|');
?>
Output:
Vær|så|god!