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@ 2022-08-30T11:15:53Z

<?php

$locale = 'cs_CZ.ISO8859-2';
setlocale( LC_CTYPE, $locale);

$char = 'ž';
echo "Testing strtoupper('{$char}'):\n";
echo "Expected result: Ž\n";
echo 'Actual result: ' . strtoupper($char) . "\n";

Output
Performance
VLD
References
Branches

strtoupper: documentation ( source)
setlocale: documentation ( source)

preferences:dark modelive preview

43.13 ms | 402 KiB | 5 Q