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<?php $txt = "My text \"can contain\" both single 'and double\"' quotes. The quotes \"can also be 'nested\" as you can see."; if (preg_match_all('~(?|"([^"]*)"|\'([^\']*)\')~', $txt, $matches)) { print_r($matches[1]); }
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 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 - 8.3.26, 8.4.1 - 8.4.13
Array ( [0] => can contain [1] => and double" [2] => can also be 'nested )

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