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<?php $str = '自此直至2010年n'; preg_match_all('/(\w+)/U', $str, $matches); print_r($matches[0]);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 2 [1] => 0 [2] => 1 [3] => 0 [4] => n )

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