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Editorial Team
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Asked: 2026-05-16T08:06:37+00:00

I often have comment forms and lots of users post things such as !!!!!!!!!!!

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I often have comment forms and lots of users post things such as !!!!!!!!!!! and ??????????, and I want to use preg_replace to change them to !! and ??, with two maximum.

Any idea how to do this?

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1 Answer

  1. Editorial Team
    $t = "aaaaaabbbbbbbbccccccccccc";
$t = preg_replace('~(.)\1{2,}~', '$1$1', $t);
echo $t; // aabbcc
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