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<?php
$a = "алах акбар!";
$a1 = mb_substr($a, 0, 1);
$a3 = mb_strtoupper($a1);
var_dump($a1);
var_dump($a3);
echo "{$a1} {$a3}";

Success #stdin #stdout 0.03s 52432KB

stdin

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Standard input is empty

stdout

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string(2) "а"
string(2) "А"
а А

https://ideone.com/kDuQho

language:

PHP (php 7.3.5)

created:

visibility:

secret

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