<?php
locale_set_default("nl");
echo strtotitle("het ijsselmeer (ijsselmeer) is ßaf"), "<br/>\n";
locale_set_default("tr");
echo strtotitle("het ijsselmeer (ijsselmeer) is ßaf"), "\n";
?>
Output
<?php
locale_set_default("nl");
echo strtotitle("het ijsselmeer (ijsselmeer) is ßaf"), "<br/>\n";
locale_set_default("tr");
echo strtotitle("het ijsselmeer (ijsselmeer) is ßaf"), "\n";
?>