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<?php var_dump(preg_match_all('/#([^#\s]+)\b/u', '#中文 tag 1 #tag3', $r)); var_dump($r);
Output for git.master, git.master_jit, rfc.property-hooks
int(2) array(2) { [0]=> array(2) { [0]=> string(7) "#中文" [1]=> string(5) "#tag3" } [1]=> array(2) { [0]=> string(6) "中文" [1]=> string(4) "tag3" } }

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