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<?php $string = '#heavy / machine gun #test';preg_match('\b#\w\w+', $string, $matches); print_r($matches);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match(): Delimiter must not be alphanumeric, backslash, or NUL in /in/RBrka on line 3

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