Converts a string to UTF-8 encoding.
string $string:
string
public static function convertToUtf8($string) {
if (!self::isUtf8($string)) {
if (function_exists('mb_convert_encoding')) {
$string = mb_convert_encoding($string, 'UTF-8');
}
else {
$string = utf8_encode($string);
}
}
return $string;
}