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<?php $str = 'SAMSUNG DCB270R'; $out = []; preg_match_all('/\b[A-Z0-9]+\b/g', $str, $out); var_dump($out);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: preg_match_all(): Unknown modifier 'g' in /in/5JPci on line 5 array(0) { }

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