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<?php var_dump(preg_match_all('/#(\w+)\b/', '#tag1 41654 #tag 1', $r)); var_dump($r);
Output for git.master, git.master_jit, rfc.property-hooks
int(2) array(2) { [0]=> array(2) { [0]=> string(5) "#tag1" [1]=> string(4) "#tag" } [1]=> array(2) { [0]=> string(4) "tag1" [1]=> string(3) "tag" } }

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