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Asked: 2026-05-25T14:26:40+00:00

I am writing a regular expression in PHP that will need to extract data

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I am writing a regular expression in PHP that will need to extract data from strings that look like:

Naujasis Salemas, Šiaurės Dakota
Jungtinės Valstijos (Centras, Šiaurės Dakota)

I would like to extract:

Naujasis Salemas
Centras

For the first case, I have written [^-]*(?=,), which works quite well. I would like to modify the expression so that if there are parenthesis ( and ) , it should search between those parenthesis and then extract everything before the comma.

Is it possible to do something like this with just 1 expression? If so, how can I make it search within parenthesis if they exist?

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1 Answer

  1. Editorial Team

    I think this one could do it:

    [^-(]+(?=,)

    This is the same regex as your, but it doesn’t allow a parenthesis in the matched string. It will still match on the first subject, and on the second it will match just after the opening parenthesis.

    Try it here: http://ideone.com/Crhzz

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