- Output for 7.4.26, 8.1.23 - 8.1.27, 8.2.10 - 8.2.17, 8.3.0 - 8.3.4
- array(4) { ["str"]=> string(1) "i" ["str_hex"]=> string(2) "69" ["res"]=> string(1) "I" ["res_hex"]=> string(2) "49" }
<?php
setlocale(LC_ALL, "Turkish");
$str="i";
$res=strtoupper($str);
var_dump([
"str"=>$str,
"str_hex"=>bin2hex($str),
"res"=>$res,
"res_hex"=>bin2hex($res),
]);