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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
/*echo strtr('ПрЕвеД',
['а' => 'А',
'б' => 'Б',
'в' => 'В',
'г' => 'Г',
'д' => 'Д',
'е' => 'Е',
'п' => 'П',
'р' => 'Р',
'я' => 'Я'
]);
*/
echo strtoupper('ПрЕвеД');