UTF-8 aware replacement for trim() Strip whitespace (or other characters) from the beginning and end of a string Note: you only need to use this if you are supplying the charlist optional arg and it contains UTF-8 characters. Otherwise trim will work normally on a UTF-8 string
Signature
public function trim(string
$str,
[string
$charlist = false] )
Parameters
$str
The string to be trimmed
$charlist
The optional charlist of additional characters to trim