<?php
var_dump(IntlChar::totitle("DŽ"));
var_dump(IntlChar::totitle("dž"));
var_dump(IntlChar::totitle("Φ"));
var_dump(IntlChar::totitle("φ"));
var_dump(IntlChar::totitle("1"));
var_dump(IntlChar::totitle("ᾳ");
var_dump(IntlChar::totitle(ord("A")));
?>
string(1) "Dž"
string(1) "Dž"
string(2) "Φ"
string(2) "φ"
string(1) "1"
string(1) "ᾼ"
int(65)