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Editorial Team
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Asked: 2026-05-25T11:58:36+00:00

I have this so far: preg_replace(([^\.\?\!]NNNNNNNNNN)[\.\?\!],,$string); and I also tried preg_replace(([^\.\?\!]\N\N\N\N\N\N\N\N\N\N)[\.\?\!],,$string); But it’s removing

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I have this so far:

preg_replace("([^\.\?\!]NNNNNNNNNN)[\.\?\!]","",$string);

and I also tried

preg_replace("([^\.\?\!]\N\N\N\N\N\N\N\N\N\N)[\.\?\!]","",$string);

But it’s removing everything in $string.

The text I need to find (and remove the containing sentence) is: “NNNNNNNNNN”

Ideas?

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1 Answer

  1. Editorial Team

    What about something like this:

    preg_replace("/(^|[.?!])[^.?!]*N{10}[^.?!]*[.?!]/g", "$1", $string);

    I’ll break it down, but I don’t know if it will work.

    • (^|[.?!]) – the end of the previous sentence – captured
    • [^.?!]* – possible multiple things that are not a end of sentence indicator
    • N{10} – what you want to match
    • [^.?!]* – possible multiple things that are not a end of sentence indicator
    • [.?!] – the end of your sentence

    Results in PHP:

    user@domain:~$ php -a
    Interactive shell

    php > $string = "This is a test. This is NNNNNNNNNN. This is still a test! Or is it?";

    php > print preg_replace("/(^|[.?!])[^.?!]*N{10}[^.?!]*[.?!]/", "$1", $string);

    This is a test. This is still a test! Or is it?

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