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<?php $a = 'Северный атлантический/русский банк москвы, находящийся на_юге\ москвы'; echo preg_replace('#[^0-9a-zA-Zа-яА-ЯёЁ.\\/_]#','', $a);
Output for git.master, git.master_jit, rfc.property-hooks
Севе�н�йа�лан�и�еский/��сскийбанкмоскв�на�одя�ийсяна_�ге москв�

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