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<?php $str = "Ref ID =={1234} [201] (text message)"; preg_match_all("/[{|\[|\(](.*?)[\]|\)\}]/", $str, $matches); var_dump($matches);
Output for 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
array(2) { [0]=> array(3) { [0]=> string(6) "{1234}" [1]=> string(5) "[201]" [2]=> string(14) "(text message)" } [1]=> array(3) { [0]=> string(4) "1234" [1]=> string(3) "201" [2]=> string(12) "text message" } }

preferences:
145.61 ms | 408 KiB | 5 Q