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<?php $strings = [ 'Арг.ен!тина ма,нит нег$ра', 'S!um summ$us mu,s', 'Арг.ен!тина ма,нит нег$ра'.'S!um summ$us mu,s', ]; foreach($strings as $string) { $string = mb_strtolower($string); $preparedString = preg_replace('/[^\p{Cyrillic}\p{Latin}]/u', '', $string); echo $string.' -> '.$preparedString."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
арг.ен!тина ма,нит нег$ра -> аргентинаманитнегра s!um summ$us mu,s -> sumsummusmus арг.ен!тина ма,нит нег$раs!um summ$us mu,s -> аргентинаманитнеграsumsummusmus

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