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<?php $text = "[text] (more text) (text...) [text!] (last text)"; preg_match_all('/[\[\(](.*?)[\]\)]/', $text, $matches, PREG_SET_ORDER, 0); $texts = array_column($matches, 1); var_dump($texts);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(5) { [0]=> string(4) "text" [1]=> string(9) "more text" [2]=> string(7) "text..." [3]=> string(5) "text!" [4]=> string(9) "last text" }

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153.8 ms | 404 KiB | 174 Q