<?php echo $str = 'YİY', "\n"; echo bin2hex($str), "\n"; echo $tmp = mb_convert_case($str, MB_CASE_LOWER, 'UTF-8'), "\n"; echo bin2hex($tmp), "\n"; echo $tmp = mb_convert_case($tmp, MB_CASE_UPPER, 'UTF-8'), "\n"; echo bin2hex($tmp);
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Value for `_results` contains invalid data `array`