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<?php $var= '\\010 - Końcówki i obudowy\010 - Nasuwki\010 - Nasuwki 2,8x0,4'; $res= preg_match_all('/\\\[0-9]{3}/', $var, $match); var_dump($match);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { [0]=> array(3) { [0]=> string(4) "\010" [1]=> string(4) "\010" [2]=> string(4) "\010" } }

preferences:
307.21 ms | 406 KiB | 460 Q