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@ 2014-02-18T08:29:29Z

<?php
setlocale(LC_ALL, 'ru_RU.UTF-8'); 
echo preg_replace('#(*UCP)\w#', '<|$0|>', 'пхп') . PHP_EOL;
echo PCRE_VERSION . PHP_EOL;
echo setlocale(LC_ALL, 0);
//print_r(preg_last_error());

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)
setlocale: documentation ( source)

preferences:dark modelive preview

35.71 ms | 402 KiB | 5 Q