3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "क. ಕ. के. ಕೆ. "; echo preg_replace('~\b(?<!\p{M})\p{L}\p{M}*+\.~u', '<pre>$0</pre>', $s);

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27.89 ms | 404 KiB | 5 Q