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@ 2021-09-17T11:18:46Z

<?php

$str = '"hi (text here) and (other text)" come (again) and "(again)", right?';

echo preg_replace(
         '~(?:\G(?!^)|"(?=[^"]+"))[^"()]*(?:"(*SKIP)(*FAIL)|\K[()])~',
         '\\\$0',
         $str
     );

Output
Performance
VLD
References
Branches

preg_replace: documentation ( source)

preferences:dark modelive previewkey bindings

42.72 ms | 1395 KiB | 5 Q